Home / 86,038.97-129,140.54-52,823.91

Finding the Fourth Proportional to 86,038.97, 129,140.54 and 52,823.91

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Solution

The fourth proportional to 86,038.97, 129,140.54 and 52,823.91 is: 79,286.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,038.97 : 129,140.54 = 52,823.91 : x
  2. Step 2: Convert to fraction form
    86,038.97/129,140.54 = 52,823.91/x
  3. Step 3: Cross multiply
    86,038.97x = 129,140.54 × 52,823.91
  4. Step 4: Simplify right side
    86,038.97x = 6,821,708,262.31
  5. Step 5: Solve for x
    x = 6,821,708,262.31/86,038.97
  6. Step 6: Final answer
    x = 79,286.26

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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.