Home / 47,781.60-65,954-28,934.52

Finding the Fourth Proportional to 47,781.60, 65,954 and 28,934.52

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Solution

The fourth proportional to 47,781.60, 65,954 and 28,934.52 is: 39,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,781.60 : 65,954 = 28,934.52 : x
  2. Step 2: Convert to fraction form
    47,781.60/65,954 = 28,934.52/x
  3. Step 3: Cross multiply
    47,781.60x = 65,954 × 28,934.52
  4. Step 4: Simplify right side
    47,781.60x = 1,908,347,332.08
  5. Step 5: Solve for x
    x = 1,908,347,332.08/47,781.60
  6. Step 6: Final answer
    x = 39,938.96

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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.