Home / 91,437.68-126,188.75-51,152.11

Finding the Fourth Proportional to 91,437.68, 126,188.75 and 51,152.11

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Solution

The fourth proportional to 91,437.68, 126,188.75 and 51,152.11 is: 70,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,437.68 : 126,188.75 = 51,152.11 : x
  2. Step 2: Convert to fraction form
    91,437.68/126,188.75 = 51,152.11/x
  3. Step 3: Cross multiply
    91,437.68x = 126,188.75 × 51,152.11
  4. Step 4: Simplify right side
    91,437.68x = 6,454,820,820.76
  5. Step 5: Solve for x
    x = 6,454,820,820.76/91,437.68
  6. Step 6: Final answer
    x = 70,592.57

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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.