Home / 91,332.23-137,011.26-28,157.50

Finding the Fourth Proportional to 91,332.23, 137,011.26 and 28,157.50

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Solution

The fourth proportional to 91,332.23, 137,011.26 and 28,157.50 is: 42,240.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,332.23 : 137,011.26 = 28,157.50 : x
  2. Step 2: Convert to fraction form
    91,332.23/137,011.26 = 28,157.50/x
  3. Step 3: Cross multiply
    91,332.23x = 137,011.26 × 28,157.50
  4. Step 4: Simplify right side
    91,332.23x = 3,857,894,210.92
  5. Step 5: Solve for x
    x = 3,857,894,210.92/91,332.23
  6. Step 6: Final answer
    x = 42,240.23

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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.