Home / 80,538.18-111,140.75-44,727.89

Finding the Fourth Proportional to 80,538.18, 111,140.75 and 44,727.89

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Solution

The fourth proportional to 80,538.18, 111,140.75 and 44,727.89 is: 61,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,538.18 : 111,140.75 = 44,727.89 : x
  2. Step 2: Convert to fraction form
    80,538.18/111,140.75 = 44,727.89/x
  3. Step 3: Cross multiply
    80,538.18x = 111,140.75 × 44,727.89
  4. Step 4: Simplify right side
    80,538.18x = 4,971,090,461.17
  5. Step 5: Solve for x
    x = 4,971,090,461.17/80,538.18
  6. Step 6: Final answer
    x = 61,723.40

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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.