Home / 65,250.27-90,041.11-38,387.58

Finding the Fourth Proportional to 65,250.27, 90,041.11 and 38,387.58

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Solution

The fourth proportional to 65,250.27, 90,041.11 and 38,387.58 is: 52,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,250.27 : 90,041.11 = 38,387.58 : x
  2. Step 2: Convert to fraction form
    65,250.27/90,041.11 = 38,387.58/x
  3. Step 3: Cross multiply
    65,250.27x = 90,041.11 × 38,387.58
  4. Step 4: Simplify right side
    65,250.27x = 3,456,460,313.41
  5. Step 5: Solve for x
    x = 3,456,460,313.41/65,250.27
  6. Step 6: Final answer
    x = 52,972.35

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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.