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Finding the Fourth Proportional to 74,174.28, 110,599.80 and 65,931.72

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Solution

The fourth proportional to 74,174.28, 110,599.80 and 65,931.72 is: 98,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,174.28 : 110,599.80 = 65,931.72 : x
  2. Step 2: Convert to fraction form
    74,174.28/110,599.80 = 65,931.72/x
  3. Step 3: Cross multiply
    74,174.28x = 110,599.80 × 65,931.72
  4. Step 4: Simplify right side
    74,174.28x = 7,292,035,045.66
  5. Step 5: Solve for x
    x = 7,292,035,045.66/74,174.28
  6. Step 6: Final answer
    x = 98,309.48

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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.