Home / 74,262.08-102,487.10-42,430.29

Finding the Fourth Proportional to 74,262.08, 102,487.10 and 42,430.29

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Solution

The fourth proportional to 74,262.08, 102,487.10 and 42,430.29 is: 58,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,262.08 : 102,487.10 = 42,430.29 : x
  2. Step 2: Convert to fraction form
    74,262.08/102,487.10 = 42,430.29/x
  3. Step 3: Cross multiply
    74,262.08x = 102,487.10 × 42,430.29
  4. Step 4: Simplify right side
    74,262.08x = 4,348,557,374.26
  5. Step 5: Solve for x
    x = 4,348,557,374.26/74,262.08
  6. Step 6: Final answer
    x = 58,556.90

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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.