Home / 83,088.81-124,633.35-20,759.31

Finding the Fourth Proportional to 83,088.81, 124,633.35 and 20,759.31

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Solution

The fourth proportional to 83,088.81, 124,633.35 and 20,759.31 is: 31,139.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,088.81 : 124,633.35 = 20,759.31 : x
  2. Step 2: Convert to fraction form
    83,088.81/124,633.35 = 20,759.31/x
  3. Step 3: Cross multiply
    83,088.81x = 124,633.35 × 20,759.31
  4. Step 4: Simplify right side
    83,088.81x = 2,587,302,348.99
  5. Step 5: Solve for x
    x = 2,587,302,348.99/83,088.81
  6. Step 6: Final answer
    x = 31,139.00

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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.