Home / 74,219.13-102,411.27-42,381.27

Finding the Fourth Proportional to 74,219.13, 102,411.27 and 42,381.27

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Solution

The fourth proportional to 74,219.13, 102,411.27 and 42,381.27 is: 58,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,219.13 : 102,411.27 = 42,381.27 : x
  2. Step 2: Convert to fraction form
    74,219.13/102,411.27 = 42,381.27/x
  3. Step 3: Cross multiply
    74,219.13x = 102,411.27 × 42,381.27
  4. Step 4: Simplify right side
    74,219.13x = 4,340,319,684.91
  5. Step 5: Solve for x
    x = 4,340,319,684.91/74,219.13
  6. Step 6: Final answer
    x = 58,479.80

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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.