Home / 56,781.98-85,248.34-48,515.12

Finding the Fourth Proportional to 56,781.98, 85,248.34 and 48,515.12

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Solution

The fourth proportional to 56,781.98, 85,248.34 and 48,515.12 is: 72,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,781.98 : 85,248.34 = 48,515.12 : x
  2. Step 2: Convert to fraction form
    56,781.98/85,248.34 = 48,515.12/x
  3. Step 3: Cross multiply
    56,781.98x = 85,248.34 × 48,515.12
  4. Step 4: Simplify right side
    56,781.98x = 4,135,833,444.90
  5. Step 5: Solve for x
    x = 4,135,833,444.90/56,781.98
  6. Step 6: Final answer
    x = 72,837.08

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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.