Home / 91,129.32-125,690.55-66,922.65

Finding the Fourth Proportional to 91,129.32, 125,690.55 and 66,922.65

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Solution

The fourth proportional to 91,129.32, 125,690.55 and 66,922.65 is: 92,303.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,129.32 : 125,690.55 = 66,922.65 : x
  2. Step 2: Convert to fraction form
    91,129.32/125,690.55 = 66,922.65/x
  3. Step 3: Cross multiply
    91,129.32x = 125,690.55 × 66,922.65
  4. Step 4: Simplify right side
    91,129.32x = 8,411,544,685.96
  5. Step 5: Solve for x
    x = 8,411,544,685.96/91,129.32
  6. Step 6: Final answer
    x = 92,303.38

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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.