Home / 91,350.68-137,041.74-31,376.31

Finding the Fourth Proportional to 91,350.68, 137,041.74 and 31,376.31

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Solution

The fourth proportional to 91,350.68, 137,041.74 and 31,376.31 is: 47,069.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,350.68 : 137,041.74 = 31,376.31 : x
  2. Step 2: Convert to fraction form
    91,350.68/137,041.74 = 31,376.31/x
  3. Step 3: Cross multiply
    91,350.68x = 137,041.74 × 31,376.31
  4. Step 4: Simplify right side
    91,350.68x = 4,299,864,117.18
  5. Step 5: Solve for x
    x = 4,299,864,117.18/91,350.68
  6. Step 6: Final answer
    x = 47,069.87

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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.