Home / 91,639.08-126,459.86-53,396.25

Finding the Fourth Proportional to 91,639.08, 126,459.86 and 53,396.25

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Solution

The fourth proportional to 91,639.08, 126,459.86 and 53,396.25 is: 73,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,639.08 : 126,459.86 = 53,396.25 : x
  2. Step 2: Convert to fraction form
    91,639.08/126,459.86 = 53,396.25/x
  3. Step 3: Cross multiply
    91,639.08x = 126,459.86 × 53,396.25
  4. Step 4: Simplify right side
    91,639.08x = 6,752,482,232.78
  5. Step 5: Solve for x
    x = 6,752,482,232.78/91,639.08
  6. Step 6: Final answer
    x = 73,685.61

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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.