Home / 63,420.17-87,520.48-38,264.81

Finding the Fourth Proportional to 63,420.17, 87,520.48 and 38,264.81

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Solution

The fourth proportional to 63,420.17, 87,520.48 and 38,264.81 is: 52,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,420.17 : 87,520.48 = 38,264.81 : x
  2. Step 2: Convert to fraction form
    63,420.17/87,520.48 = 38,264.81/x
  3. Step 3: Cross multiply
    63,420.17x = 87,520.48 × 38,264.81
  4. Step 4: Simplify right side
    63,420.17x = 3,348,954,804.94
  5. Step 5: Solve for x
    x = 3,348,954,804.94/63,420.17
  6. Step 6: Final answer
    x = 52,805.83

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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.