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Finding the Fourth Proportional to 86,841.79, 119,854.56 and 55,013.65

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Solution

The fourth proportional to 86,841.79, 119,854.56 and 55,013.65 is: 75,927.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,841.79 : 119,854.56 = 55,013.65 : x
  2. Step 2: Convert to fraction form
    86,841.79/119,854.56 = 55,013.65/x
  3. Step 3: Cross multiply
    86,841.79x = 119,854.56 × 55,013.65
  4. Step 4: Simplify right side
    86,841.79x = 6,593,636,814.74
  5. Step 5: Solve for x
    x = 6,593,636,814.74/86,841.79
  6. Step 6: Final answer
    x = 75,927.00

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1.5x scale

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.