Home / 86,785.11-130,152.15-36,864.81

Finding the Fourth Proportional to 86,785.11, 130,152.15 and 36,864.81

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Solution

The fourth proportional to 86,785.11, 130,152.15 and 36,864.81 is: 55,286.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,785.11 : 130,152.15 = 36,864.81 : x
  2. Step 2: Convert to fraction form
    86,785.11/130,152.15 = 36,864.81/x
  3. Step 3: Cross multiply
    86,785.11x = 130,152.15 × 36,864.81
  4. Step 4: Simplify right side
    86,785.11x = 4,798,034,280.84
  5. Step 5: Solve for x
    x = 4,798,034,280.84/86,785.11
  6. Step 6: Final answer
    x = 55,286.38

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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.