Home / 91,564.06-126,064.66-71,395.06

Finding the Fourth Proportional to 91,564.06, 126,064.66 and 71,395.06

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Solution

The fourth proportional to 91,564.06, 126,064.66 and 71,395.06 is: 98,296.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,564.06 : 126,064.66 = 71,395.06 : x
  2. Step 2: Convert to fraction form
    91,564.06/126,064.66 = 71,395.06/x
  3. Step 3: Cross multiply
    91,564.06x = 126,064.66 × 71,395.06
  4. Step 4: Simplify right side
    91,564.06x = 9,000,392,977.28
  5. Step 5: Solve for x
    x = 9,000,392,977.28/91,564.06
  6. Step 6: Final answer
    x = 98,296.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.