Home / 48,355.18-72,498.75-18,748.06

Finding the Fourth Proportional to 48,355.18, 72,498.75 and 18,748.06

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Solution

The fourth proportional to 48,355.18, 72,498.75 and 18,748.06 is: 28,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,355.18 : 72,498.75 = 18,748.06 : x
  2. Step 2: Convert to fraction form
    48,355.18/72,498.75 = 18,748.06/x
  3. Step 3: Cross multiply
    48,355.18x = 72,498.75 × 18,748.06
  4. Step 4: Simplify right side
    48,355.18x = 1,359,210,914.93
  5. Step 5: Solve for x
    x = 1,359,210,914.93/48,355.18
  6. Step 6: Final answer
    x = 28,108.90

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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.