Home / 83,587.52-115,345.14-45,864.20

Finding the Fourth Proportional to 83,587.52, 115,345.14 and 45,864.20

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Solution

The fourth proportional to 83,587.52, 115,345.14 and 45,864.20 is: 63,289.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,587.52 : 115,345.14 = 45,864.20 : x
  2. Step 2: Convert to fraction form
    83,587.52/115,345.14 = 45,864.20/x
  3. Step 3: Cross multiply
    83,587.52x = 115,345.14 × 45,864.20
  4. Step 4: Simplify right side
    83,587.52x = 5,290,212,569.99
  5. Step 5: Solve for x
    x = 5,290,212,569.99/83,587.52
  6. Step 6: Final answer
    x = 63,289.50

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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.