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Finding the Fourth Proportional to 84,911.52, 126,626.02 and 74,430.08

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Solution

The fourth proportional to 84,911.52, 126,626.02 and 74,430.08 is: 110,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,911.52 : 126,626.02 = 74,430.08 : x
  2. Step 2: Convert to fraction form
    84,911.52/126,626.02 = 74,430.08/x
  3. Step 3: Cross multiply
    84,911.52x = 126,626.02 × 74,430.08
  4. Step 4: Simplify right side
    84,911.52x = 9,424,784,798.68
  5. Step 5: Solve for x
    x = 9,424,784,798.68/84,911.52
  6. Step 6: Final answer
    x = 110,995.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.