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Finding the Fourth Proportional to 82,841.40, 124,282.80 and 26,686.80

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Solution

The fourth proportional to 82,841.40, 124,282.80 and 26,686.80 is: 40,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,841.40 : 124,282.80 = 26,686.80 : x
  2. Step 2: Convert to fraction form
    82,841.40/124,282.80 = 26,686.80/x
  3. Step 3: Cross multiply
    82,841.40x = 124,282.80 × 26,686.80
  4. Step 4: Simplify right side
    82,841.40x = 3,316,710,227.04
  5. Step 5: Solve for x
    x = 3,316,710,227.04/82,841.40
  6. Step 6: Final answer
    x = 40,036.87

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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.