Home / 86,681.49-130,012.92-58,780.64

Finding the Fourth Proportional to 86,681.49, 130,012.92 and 58,780.64

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Solution

The fourth proportional to 86,681.49, 130,012.92 and 58,780.64 is: 88,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,681.49 : 130,012.92 = 58,780.64 : x
  2. Step 2: Convert to fraction form
    86,681.49/130,012.92 = 58,780.64/x
  3. Step 3: Cross multiply
    86,681.49x = 130,012.92 × 58,780.64
  4. Step 4: Simplify right side
    86,681.49x = 7,642,241,995.80
  5. Step 5: Solve for x
    x = 7,642,241,995.80/86,681.49
  6. Step 6: Final answer
    x = 88,164.64

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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.