Home / 56,881.13-85,255.25-42,795.90

Finding the Fourth Proportional to 56,881.13, 85,255.25 and 42,795.90

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Solution

The fourth proportional to 56,881.13, 85,255.25 and 42,795.90 is: 64,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,881.13 : 85,255.25 = 42,795.90 : x
  2. Step 2: Convert to fraction form
    56,881.13/85,255.25 = 42,795.90/x
  3. Step 3: Cross multiply
    56,881.13x = 85,255.25 × 42,795.90
  4. Step 4: Simplify right side
    56,881.13x = 3,648,574,780.27
  5. Step 5: Solve for x
    x = 3,648,574,780.27/56,881.13
  6. Step 6: Final answer
    x = 64,143.85

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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.