Home / 91,612.59-126,438.74-51,329.08

Finding the Fourth Proportional to 91,612.59, 126,438.74 and 51,329.08

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Solution

The fourth proportional to 91,612.59, 126,438.74 and 51,329.08 is: 70,841.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,612.59 : 126,438.74 = 51,329.08 : x
  2. Step 2: Convert to fraction form
    91,612.59/126,438.74 = 51,329.08/x
  3. Step 3: Cross multiply
    91,612.59x = 126,438.74 × 51,329.08
  4. Step 4: Simplify right side
    91,612.59x = 6,489,984,200.56
  5. Step 5: Solve for x
    x = 6,489,984,200.56/91,612.59
  6. Step 6: Final answer
    x = 70,841.62

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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.