Home / 91,681.20-126,529.02-51,395.04

Finding the Fourth Proportional to 91,681.20, 126,529.02 and 51,395.04

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Solution

The fourth proportional to 91,681.20, 126,529.02 and 51,395.04 is: 70,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,681.20 : 126,529.02 = 51,395.04 : x
  2. Step 2: Convert to fraction form
    91,681.20/126,529.02 = 51,395.04/x
  3. Step 3: Cross multiply
    91,681.20x = 126,529.02 × 51,395.04
  4. Step 4: Simplify right side
    91,681.20x = 6,502,964,044.06
  5. Step 5: Solve for x
    x = 6,502,964,044.06/91,681.20
  6. Step 6: Final answer
    x = 70,930.18

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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.