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Finding the Fourth Proportional to 79,337.04, 109,478.16 and 45,338.76

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Solution

The fourth proportional to 79,337.04, 109,478.16 and 45,338.76 is: 62,563.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,337.04 : 109,478.16 = 45,338.76 : x
  2. Step 2: Convert to fraction form
    79,337.04/109,478.16 = 45,338.76/x
  3. Step 3: Cross multiply
    79,337.04x = 109,478.16 × 45,338.76
  4. Step 4: Simplify right side
    79,337.04x = 4,963,604,021.48
  5. Step 5: Solve for x
    x = 4,963,604,021.48/79,337.04
  6. Step 6: Final answer
    x = 62,563.51

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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.