Home / 87,395.03-130,972.93-66,030.17

Finding the Fourth Proportional to 87,395.03, 130,972.93 and 66,030.17

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Solution

The fourth proportional to 87,395.03, 130,972.93 and 66,030.17 is: 98,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,395.03 : 130,972.93 = 66,030.17 : x
  2. Step 2: Convert to fraction form
    87,395.03/130,972.93 = 66,030.17/x
  3. Step 3: Cross multiply
    87,395.03x = 130,972.93 × 66,030.17
  4. Step 4: Simplify right side
    87,395.03x = 8,648,164,995.66
  5. Step 5: Solve for x
    x = 8,648,164,995.66/87,395.03
  6. Step 6: Final answer
    x = 98,954.89

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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.