Home / 74,240.16-102,440.25-42,402.30

Finding the Fourth Proportional to 74,240.16, 102,440.25 and 42,402.30

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Solution

The fourth proportional to 74,240.16, 102,440.25 and 42,402.30 is: 58,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,240.16 : 102,440.25 = 42,402.30 : x
  2. Step 2: Convert to fraction form
    74,240.16/102,440.25 = 42,402.30/x
  3. Step 3: Cross multiply
    74,240.16x = 102,440.25 × 42,402.30
  4. Step 4: Simplify right side
    74,240.16x = 4,343,702,212.58
  5. Step 5: Solve for x
    x = 4,343,702,212.58/74,240.16
  6. Step 6: Final answer
    x = 58,508.79

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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.