Home / 80,515.04-111,108.72-44,703.92

Finding the Fourth Proportional to 80,515.04, 111,108.72 and 44,703.92

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Solution

The fourth proportional to 80,515.04, 111,108.72 and 44,703.92 is: 61,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,515.04 : 111,108.72 = 44,703.92 : x
  2. Step 2: Convert to fraction form
    80,515.04/111,108.72 = 44,703.92/x
  3. Step 3: Cross multiply
    80,515.04x = 111,108.72 × 44,703.92
  4. Step 4: Simplify right side
    80,515.04x = 4,966,995,330.18
  5. Step 5: Solve for x
    x = 4,966,995,330.18/80,515.04
  6. Step 6: Final answer
    x = 61,690.28

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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.