Home / 80,686.17-111,338.37-44,870.40

Finding the Fourth Proportional to 80,686.17, 111,338.37 and 44,870.40

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Solution

The fourth proportional to 80,686.17, 111,338.37 and 44,870.40 is: 61,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,686.17 : 111,338.37 = 44,870.40 : x
  2. Step 2: Convert to fraction form
    80,686.17/111,338.37 = 44,870.40/x
  3. Step 3: Cross multiply
    80,686.17x = 111,338.37 × 44,870.40
  4. Step 4: Simplify right side
    80,686.17x = 4,995,797,197.25
  5. Step 5: Solve for x
    x = 4,995,797,197.25/80,686.17
  6. Step 6: Final answer
    x = 61,916.40

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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.