Home / 90,627.17-125,125.98-56,683.72

Finding the Fourth Proportional to 90,627.17, 125,125.98 and 56,683.72

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Solution

The fourth proportional to 90,627.17, 125,125.98 and 56,683.72 is: 78,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,627.17 : 125,125.98 = 56,683.72 : x
  2. Step 2: Convert to fraction form
    90,627.17/125,125.98 = 56,683.72/x
  3. Step 3: Cross multiply
    90,627.17x = 125,125.98 × 56,683.72
  4. Step 4: Simplify right side
    90,627.17x = 7,092,606,015.05
  5. Step 5: Solve for x
    x = 7,092,606,015.05/90,627.17
  6. Step 6: Final answer
    x = 78,261.36

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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.