Home / 91,508.10-137,225.24-28,313.36

Finding the Fourth Proportional to 91,508.10, 137,225.24 and 28,313.36

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Solution

The fourth proportional to 91,508.10, 137,225.24 and 28,313.36 is: 42,458.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,508.10 : 137,225.24 = 28,313.36 : x
  2. Step 2: Convert to fraction form
    91,508.10/137,225.24 = 28,313.36/x
  3. Step 3: Cross multiply
    91,508.10x = 137,225.24 × 28,313.36
  4. Step 4: Simplify right side
    91,508.10x = 3,885,308,186.18
  5. Step 5: Solve for x
    x = 3,885,308,186.18/91,508.10
  6. Step 6: Final answer
    x = 42,458.63

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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.