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Finding the Fourth Proportional to 79,422.57, 109,530.02 and 53,967.11

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Solution

The fourth proportional to 79,422.57, 109,530.02 and 53,967.11 is: 74,424.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,422.57 : 109,530.02 = 53,967.11 : x
  2. Step 2: Convert to fraction form
    79,422.57/109,530.02 = 53,967.11/x
  3. Step 3: Cross multiply
    79,422.57x = 109,530.02 × 53,967.11
  4. Step 4: Simplify right side
    79,422.57x = 5,911,018,224.91
  5. Step 5: Solve for x
    x = 5,911,018,224.91/79,422.57
  6. Step 6: Final answer
    x = 74,424.92

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1.5x scale

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.