Home / 91,086.53-125,750.23-63,945.90

Finding the Fourth Proportional to 91,086.53, 125,750.23 and 63,945.90

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Solution

The fourth proportional to 91,086.53, 125,750.23 and 63,945.90 is: 88,281.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,086.53 : 125,750.23 = 63,945.90 : x
  2. Step 2: Convert to fraction form
    91,086.53/125,750.23 = 63,945.90/x
  3. Step 3: Cross multiply
    91,086.53x = 125,750.23 × 63,945.90
  4. Step 4: Simplify right side
    91,086.53x = 8,041,210,961.65
  5. Step 5: Solve for x
    x = 8,041,210,961.65/91,086.53
  6. Step 6: Final answer
    x = 88,281.01

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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.