Home / 81,528.12-122,149.14-58,032.12

Finding the Fourth Proportional to 81,528.12, 122,149.14 and 58,032.12

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Solution

The fourth proportional to 81,528.12, 122,149.14 and 58,032.12 is: 86,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,528.12 : 122,149.14 = 58,032.12 : x
  2. Step 2: Convert to fraction form
    81,528.12/122,149.14 = 58,032.12/x
  3. Step 3: Cross multiply
    81,528.12x = 122,149.14 × 58,032.12
  4. Step 4: Simplify right side
    81,528.12x = 7,088,573,550.38
  5. Step 5: Solve for x
    x = 7,088,573,550.38/81,528.12
  6. Step 6: Final answer
    x = 86,946.36

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1.5x scale

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.