Home / 39,989.32-59,890.56-31,613.08

Finding the Fourth Proportional to 39,989.32, 59,890.56 and 31,613.08

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Solution

The fourth proportional to 39,989.32, 59,890.56 and 31,613.08 is: 47,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.32 : 59,890.56 = 31,613.08 : x
  2. Step 2: Convert to fraction form
    39,989.32/59,890.56 = 31,613.08/x
  3. Step 3: Cross multiply
    39,989.32x = 59,890.56 × 31,613.08
  4. Step 4: Simplify right side
    39,989.32x = 1,893,325,064.52
  5. Step 5: Solve for x
    x = 1,893,325,064.52/39,989.32
  6. Step 6: Final answer
    x = 47,345.77

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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.