Home / 70,012.18-96,617.64-38,180.80

Finding the Fourth Proportional to 70,012.18, 96,617.64 and 38,180.80

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Solution

The fourth proportional to 70,012.18, 96,617.64 and 38,180.80 is: 52,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,012.18 : 96,617.64 = 38,180.80 : x
  2. Step 2: Convert to fraction form
    70,012.18/96,617.64 = 38,180.80/x
  3. Step 3: Cross multiply
    70,012.18x = 96,617.64 × 38,180.80
  4. Step 4: Simplify right side
    70,012.18x = 3,688,938,789.31
  5. Step 5: Solve for x
    x = 3,688,938,789.31/70,012.18
  6. Step 6: Final answer
    x = 52,689.96

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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.