Home / 56,318.90-77,611.16-42,868.85

Finding the Fourth Proportional to 56,318.90, 77,611.16 and 42,868.85

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Solution

The fourth proportional to 56,318.90, 77,611.16 and 42,868.85 is: 59,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,318.90 : 77,611.16 = 42,868.85 : x
  2. Step 2: Convert to fraction form
    56,318.90/77,611.16 = 42,868.85/x
  3. Step 3: Cross multiply
    56,318.90x = 77,611.16 × 42,868.85
  4. Step 4: Simplify right side
    56,318.90x = 3,327,100,895.48
  5. Step 5: Solve for x
    x = 3,327,100,895.48/56,318.90
  6. Step 6: Final answer
    x = 59,076.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.