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Finding the Fourth Proportional to 79,160.40, 109,253.70 and 45,168.84

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Solution

The fourth proportional to 79,160.40, 109,253.70 and 45,168.84 is: 62,340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,160.40 : 109,253.70 = 45,168.84 : x
  2. Step 2: Convert to fraction form
    79,160.40/109,253.70 = 45,168.84/x
  3. Step 3: Cross multiply
    79,160.40x = 109,253.70 × 45,168.84
  4. Step 4: Simplify right side
    79,160.40x = 4,934,862,894.71
  5. Step 5: Solve for x
    x = 4,934,862,894.71/79,160.40
  6. Step 6: Final answer
    x = 62,340.04

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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.