Home / 81,158.40-112,033.08-49,337.46

Finding the Fourth Proportional to 81,158.40, 112,033.08 and 49,337.46

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Solution

The fourth proportional to 81,158.40, 112,033.08 and 49,337.46 is: 68,106.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158.40 : 112,033.08 = 49,337.46 : x
  2. Step 2: Convert to fraction form
    81,158.40/112,033.08 = 49,337.46/x
  3. Step 3: Cross multiply
    81,158.40x = 112,033.08 × 49,337.46
  4. Step 4: Simplify right side
    81,158.40x = 5,527,427,603.18
  5. Step 5: Solve for x
    x = 5,527,427,603.18/81,158.40
  6. Step 6: Final answer
    x = 68,106.66

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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.