Home / 86,589.39-129,925.17-59,976.30

Finding the Fourth Proportional to 86,589.39, 129,925.17 and 59,976.30

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Solution

The fourth proportional to 86,589.39, 129,925.17 and 59,976.30 is: 89,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,589.39 : 129,925.17 = 59,976.30 : x
  2. Step 2: Convert to fraction form
    86,589.39/129,925.17 = 59,976.30/x
  3. Step 3: Cross multiply
    86,589.39x = 129,925.17 × 59,976.30
  4. Step 4: Simplify right side
    86,589.39x = 7,792,430,973.47
  5. Step 5: Solve for x
    x = 7,792,430,973.47/86,589.39
  6. Step 6: Final answer
    x = 89,992.91

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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.