Home / 52,721.28-79,079.08-13,278.32

Finding the Fourth Proportional to 52,721.28, 79,079.08 and 13,278.32

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Solution

The fourth proportional to 52,721.28, 79,079.08 and 13,278.32 is: 19,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,721.28 : 79,079.08 = 13,278.32 : x
  2. Step 2: Convert to fraction form
    52,721.28/79,079.08 = 13,278.32/x
  3. Step 3: Cross multiply
    52,721.28x = 79,079.08 × 13,278.32
  4. Step 4: Simplify right side
    52,721.28x = 1,050,037,329.55
  5. Step 5: Solve for x
    x = 1,050,037,329.55/52,721.28
  6. Step 6: Final answer
    x = 19,916.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.