Home / 42,755.68-64,129.12-11,594.08

Finding the Fourth Proportional to 42,755.68, 64,129.12 and 11,594.08

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Solution

The fourth proportional to 42,755.68, 64,129.12 and 11,594.08 is: 17,389.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755.68 : 64,129.12 = 11,594.08 : x
  2. Step 2: Convert to fraction form
    42,755.68/64,129.12 = 11,594.08/x
  3. Step 3: Cross multiply
    42,755.68x = 64,129.12 × 11,594.08
  4. Step 4: Simplify right side
    42,755.68x = 743,518,147.61
  5. Step 5: Solve for x
    x = 743,518,147.61/42,755.68
  6. Step 6: Final answer
    x = 17,389.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.