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Finding the Fourth Proportional to 70,879.38, 97,816.05 and 39,050.70

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Solution

The fourth proportional to 70,879.38, 97,816.05 and 39,050.70 is: 53,891.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,879.38 : 97,816.05 = 39,050.70 : x
  2. Step 2: Convert to fraction form
    70,879.38/97,816.05 = 39,050.70/x
  3. Step 3: Cross multiply
    70,879.38x = 97,816.05 × 39,050.70
  4. Step 4: Simplify right side
    70,879.38x = 3,819,785,223.74
  5. Step 5: Solve for x
    x = 3,819,785,223.74/70,879.38
  6. Step 6: Final answer
    x = 53,891.35

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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.