Home / 48,437.12-72,657.05-13,376.78

Finding the Fourth Proportional to 48,437.12, 72,657.05 and 13,376.78

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Solution

The fourth proportional to 48,437.12, 72,657.05 and 13,376.78 is: 20,065.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,437.12 : 72,657.05 = 13,376.78 : x
  2. Step 2: Convert to fraction form
    48,437.12/72,657.05 = 13,376.78/x
  3. Step 3: Cross multiply
    48,437.12x = 72,657.05 × 13,376.78
  4. Step 4: Simplify right side
    48,437.12x = 971,916,943.13
  5. Step 5: Solve for x
    x = 971,916,943.13/48,437.12
  6. Step 6: Final answer
    x = 20,065.54

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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.