Home / 48,312.08-72,453.92-18,723.28

Finding the Fourth Proportional to 48,312.08, 72,453.92 and 18,723.28

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Solution

The fourth proportional to 48,312.08, 72,453.92 and 18,723.28 is: 28,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,312.08 : 72,453.92 = 18,723.28 : x
  2. Step 2: Convert to fraction form
    48,312.08/72,453.92 = 18,723.28/x
  3. Step 3: Cross multiply
    48,312.08x = 72,453.92 × 18,723.28
  4. Step 4: Simplify right side
    48,312.08x = 1,356,575,031.26
  5. Step 5: Solve for x
    x = 1,356,575,031.26/48,312.08
  6. Step 6: Final answer
    x = 28,079.42

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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.