Home / 87,201,503.02-120,338,008.05-48,043,279.77

Finding the Fourth Proportional to 87,201,503.02, 120,338,008.05 and 48,043,279.77

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Solution

The fourth proportional to 87,201,503.02, 120,338,008.05 and 48,043,279.77 is: 66,299,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,201,503.02 : 120,338,008.05 = 48,043,279.77 : x
  2. Step 2: Convert to fraction form
    87,201,503.02/120,338,008.05 = 48,043,279.77/x
  3. Step 3: Cross multiply
    87,201,503.02x = 120,338,008.05 × 48,043,279.77
  4. Step 4: Simplify right side
    87,201,503.02x = 5,781,432,587,498,572
  5. Step 5: Solve for x
    x = 5,781,432,587,498,572/87,201,503.02
  6. Step 6: Final answer
    x = 66,299,689.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.