Home / 86,853.29-130,307.61-38,814.47

Finding the Fourth Proportional to 86,853.29, 130,307.61 and 38,814.47

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Solution

The fourth proportional to 86,853.29, 130,307.61 and 38,814.47 is: 58,234.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,853.29 : 130,307.61 = 38,814.47 : x
  2. Step 2: Convert to fraction form
    86,853.29/130,307.61 = 38,814.47/x
  3. Step 3: Cross multiply
    86,853.29x = 130,307.61 × 38,814.47
  4. Step 4: Simplify right side
    86,853.29x = 5,057,820,326.13
  5. Step 5: Solve for x
    x = 5,057,820,326.13/86,853.29
  6. Step 6: Final answer
    x = 58,234.07

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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.