Home / 91,723.70-137,585.55-56,731.70

Finding the Fourth Proportional to 91,723.70, 137,585.55 and 56,731.70

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Solution

The fourth proportional to 91,723.70, 137,585.55 and 56,731.70 is: 85,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,723.70 : 137,585.55 = 56,731.70 : x
  2. Step 2: Convert to fraction form
    91,723.70/137,585.55 = 56,731.70/x
  3. Step 3: Cross multiply
    91,723.70x = 137,585.55 × 56,731.70
  4. Step 4: Simplify right side
    91,723.70x = 7,805,462,146.94
  5. Step 5: Solve for x
    x = 7,805,462,146.94/91,723.70
  6. Step 6: Final answer
    x = 85,097.55

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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.