Home / 91,586.05-126,385-51,299.17

Finding the Fourth Proportional to 91,586.05, 126,385 and 51,299.17

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Solution

The fourth proportional to 91,586.05, 126,385 and 51,299.17 is: 70,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,586.05 : 126,385 = 51,299.17 : x
  2. Step 2: Convert to fraction form
    91,586.05/126,385 = 51,299.17/x
  3. Step 3: Cross multiply
    91,586.05x = 126,385 × 51,299.17
  4. Step 4: Simplify right side
    91,586.05x = 6,483,445,600.45
  5. Step 5: Solve for x
    x = 6,483,445,600.45/91,586.05
  6. Step 6: Final answer
    x = 70,790.75

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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.