Home / 91,323.05-136,979.10-38,001.56

Finding the Fourth Proportional to 91,323.05, 136,979.10 and 38,001.56

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Solution

The fourth proportional to 91,323.05, 136,979.10 and 38,001.56 is: 57,000.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,323.05 : 136,979.10 = 38,001.56 : x
  2. Step 2: Convert to fraction form
    91,323.05/136,979.10 = 38,001.56/x
  3. Step 3: Cross multiply
    91,323.05x = 136,979.10 × 38,001.56
  4. Step 4: Simplify right side
    91,323.05x = 5,205,418,802.50
  5. Step 5: Solve for x
    x = 5,205,418,802.50/91,323.05
  6. Step 6: Final answer
    x = 57,000.06

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1.5x scale

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.