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Finding the Fourth Proportional to 86,655.51, 129,987.90 and 24,330.87

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Solution

The fourth proportional to 86,655.51, 129,987.90 and 24,330.87 is: 36,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,655.51 : 129,987.90 = 24,330.87 : x
  2. Step 2: Convert to fraction form
    86,655.51/129,987.90 = 24,330.87/x
  3. Step 3: Cross multiply
    86,655.51x = 129,987.90 × 24,330.87
  4. Step 4: Simplify right side
    86,655.51x = 3,162,718,696.47
  5. Step 5: Solve for x
    x = 3,162,718,696.47/86,655.51
  6. Step 6: Final answer
    x = 36,497.61

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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.