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Finding the Fourth Proportional to 91,493.65, 137,253.59 and 28,319.32

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Solution

The fourth proportional to 91,493.65, 137,253.59 and 28,319.32 is: 42,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,493.65 : 137,253.59 = 28,319.32 : x
  2. Step 2: Convert to fraction form
    91,493.65/137,253.59 = 28,319.32/x
  3. Step 3: Cross multiply
    91,493.65x = 137,253.59 × 28,319.32
  4. Step 4: Simplify right side
    91,493.65x = 3,886,927,508.49
  5. Step 5: Solve for x
    x = 3,886,927,508.49/91,493.65
  6. Step 6: Final answer
    x = 42,483.03

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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.