Home / 48,397.11-72,567.75-18,780.34

Finding the Fourth Proportional to 48,397.11, 72,567.75 and 18,780.34

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Solution

The fourth proportional to 48,397.11, 72,567.75 and 18,780.34 is: 28,159.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,397.11 : 72,567.75 = 18,780.34 : x
  2. Step 2: Convert to fraction form
    48,397.11/72,567.75 = 18,780.34/x
  3. Step 3: Cross multiply
    48,397.11x = 72,567.75 × 18,780.34
  4. Step 4: Simplify right side
    48,397.11x = 1,362,847,018.04
  5. Step 5: Solve for x
    x = 1,362,847,018.04/48,397.11
  6. Step 6: Final answer
    x = 28,159.68

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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.