Home / 42,985.87-59,345.19-28,641.92

Finding the Fourth Proportional to 42,985.87, 59,345.19 and 28,641.92

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Solution

The fourth proportional to 42,985.87, 59,345.19 and 28,641.92 is: 39,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,985.87 : 59,345.19 = 28,641.92 : x
  2. Step 2: Convert to fraction form
    42,985.87/59,345.19 = 28,641.92/x
  3. Step 3: Cross multiply
    42,985.87x = 59,345.19 × 28,641.92
  4. Step 4: Simplify right side
    42,985.87x = 1,699,759,887.64
  5. Step 5: Solve for x
    x = 1,699,759,887.64/42,985.87
  6. Step 6: Final answer
    x = 39,542.30

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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.