Home / 70,210.20-96,890.05-38,379.22

Finding the Fourth Proportional to 70,210.20, 96,890.05 and 38,379.22

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Solution

The fourth proportional to 70,210.20, 96,890.05 and 38,379.22 is: 52,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,210.20 : 96,890.05 = 38,379.22 : x
  2. Step 2: Convert to fraction form
    70,210.20/96,890.05 = 38,379.22/x
  3. Step 3: Cross multiply
    70,210.20x = 96,890.05 × 38,379.22
  4. Step 4: Simplify right side
    70,210.20x = 3,718,564,544.76
  5. Step 5: Solve for x
    x = 3,718,564,544.76/70,210.20
  6. Step 6: Final answer
    x = 52,963.31

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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.