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Finding the Fourth Proportional to 70,275.72, 96,980.37 and 38,444.64

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Solution

The fourth proportional to 70,275.72, 96,980.37 and 38,444.64 is: 53,053.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,275.72 : 96,980.37 = 38,444.64 : x
  2. Step 2: Convert to fraction form
    70,275.72/96,980.37 = 38,444.64/x
  3. Step 3: Cross multiply
    70,275.72x = 96,980.37 × 38,444.64
  4. Step 4: Simplify right side
    70,275.72x = 3,728,375,411.72
  5. Step 5: Solve for x
    x = 3,728,375,411.72/70,275.72
  6. Step 6: Final answer
    x = 53,053.54

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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.