Home / 91,358.72-126,077.81-51,074.18

Finding the Fourth Proportional to 91,358.72, 126,077.81 and 51,074.18

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Solution

The fourth proportional to 91,358.72, 126,077.81 and 51,074.18 is: 70,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,358.72 : 126,077.81 = 51,074.18 : x
  2. Step 2: Convert to fraction form
    91,358.72/126,077.81 = 51,074.18/x
  3. Step 3: Cross multiply
    91,358.72x = 126,077.81 × 51,074.18
  4. Step 4: Simplify right side
    91,358.72x = 6,439,319,876.19
  5. Step 5: Solve for x
    x = 6,439,319,876.19/91,358.72
  6. Step 6: Final answer
    x = 70,483.91

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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.