Home / 48,378.31-72,572.06-18,798.43

Finding the Fourth Proportional to 48,378.31, 72,572.06 and 18,798.43

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Solution

The fourth proportional to 48,378.31, 72,572.06 and 18,798.43 is: 28,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,378.31 : 72,572.06 = 18,798.43 : x
  2. Step 2: Convert to fraction form
    48,378.31/72,572.06 = 18,798.43/x
  3. Step 3: Cross multiply
    48,378.31x = 72,572.06 × 18,798.43
  4. Step 4: Simplify right side
    48,378.31x = 1,364,240,877.30
  5. Step 5: Solve for x
    x = 1,364,240,877.30/48,378.31
  6. Step 6: Final answer
    x = 28,199.43

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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.