Home / 86,253.52-129,395.04-39,510.40

Finding the Fourth Proportional to 86,253.52, 129,395.04 and 39,510.40

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Solution

The fourth proportional to 86,253.52, 129,395.04 and 39,510.40 is: 59,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,253.52 : 129,395.04 = 39,510.40 : x
  2. Step 2: Convert to fraction form
    86,253.52/129,395.04 = 39,510.40/x
  3. Step 3: Cross multiply
    86,253.52x = 129,395.04 × 39,510.40
  4. Step 4: Simplify right side
    86,253.52x = 5,112,449,788.42
  5. Step 5: Solve for x
    x = 5,112,449,788.42/86,253.52
  6. Step 6: Final answer
    x = 59,272.36

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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.