Home / 74,402.23-102,646.13-42,129.44

Finding the Fourth Proportional to 74,402.23, 102,646.13 and 42,129.44

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Solution

The fourth proportional to 74,402.23, 102,646.13 and 42,129.44 is: 58,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402.23 : 102,646.13 = 42,129.44 : x
  2. Step 2: Convert to fraction form
    74,402.23/102,646.13 = 42,129.44/x
  3. Step 3: Cross multiply
    74,402.23x = 102,646.13 × 42,129.44
  4. Step 4: Simplify right side
    74,402.23x = 4,324,423,975.07
  5. Step 5: Solve for x
    x = 4,324,423,975.07/74,402.23
  6. Step 6: Final answer
    x = 58,122.24

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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.