Home / 86,681.74-130,013.29-58,780.89

Finding the Fourth Proportional to 86,681.74, 130,013.29 and 58,780.89

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Solution

The fourth proportional to 86,681.74, 130,013.29 and 58,780.89 is: 88,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,681.74 : 130,013.29 = 58,780.89 : x
  2. Step 2: Convert to fraction form
    86,681.74/130,013.29 = 58,780.89/x
  3. Step 3: Cross multiply
    86,681.74x = 130,013.29 × 58,780.89
  4. Step 4: Simplify right side
    86,681.74x = 7,642,296,898.03
  5. Step 5: Solve for x
    x = 7,642,296,898.03/86,681.74
  6. Step 6: Final answer
    x = 88,165.01

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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.