Home / 87,689,402.64-121,010,483.88-48,531,255.12

Finding the Fourth Proportional to 87,689,402.64, 121,010,483.88 and 48,531,255.12

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Solution

The fourth proportional to 87,689,402.64, 121,010,483.88 and 48,531,255.12 is: 66,972,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689,402.64 : 121,010,483.88 = 48,531,255.12 : x
  2. Step 2: Convert to fraction form
    87,689,402.64/121,010,483.88 = 48,531,255.12/x
  3. Step 3: Cross multiply
    87,689,402.64x = 121,010,483.88 × 48,531,255.12
  4. Step 4: Simplify right side
    87,689,402.64x = 5,872,790,665,374,927
  5. Step 5: Solve for x
    x = 5,872,790,665,374,927/87,689,402.64
  6. Step 6: Final answer
    x = 66,972,638.52

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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.