Home / 83,011.31-124,516.96-45,807.84

Finding the Fourth Proportional to 83,011.31, 124,516.96 and 45,807.84

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Solution

The fourth proportional to 83,011.31, 124,516.96 and 45,807.84 is: 68,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,011.31 : 124,516.96 = 45,807.84 : x
  2. Step 2: Convert to fraction form
    83,011.31/124,516.96 = 45,807.84/x
  3. Step 3: Cross multiply
    83,011.31x = 124,516.96 × 45,807.84
  4. Step 4: Simplify right side
    83,011.31x = 5,703,852,866.45
  5. Step 5: Solve for x
    x = 5,703,852,866.45/83,011.31
  6. Step 6: Final answer
    x = 68,711.76

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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.