Home / 87,503.09-120,754.75-49,777.34

Finding the Fourth Proportional to 87,503.09, 120,754.75 and 49,777.34

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Solution

The fourth proportional to 87,503.09, 120,754.75 and 49,777.34 is: 68,693.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,503.09 : 120,754.75 = 49,777.34 : x
  2. Step 2: Convert to fraction form
    87,503.09/120,754.75 = 49,777.34/x
  3. Step 3: Cross multiply
    87,503.09x = 120,754.75 × 49,777.34
  4. Step 4: Simplify right side
    87,503.09x = 6,010,849,612.48
  5. Step 5: Solve for x
    x = 6,010,849,612.48/87,503.09
  6. Step 6: Final answer
    x = 68,693.00

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1.5x scale

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.