Home / 70,127.78-96,772.59-38,290.46

Finding the Fourth Proportional to 70,127.78, 96,772.59 and 38,290.46

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Solution

The fourth proportional to 70,127.78, 96,772.59 and 38,290.46 is: 52,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,127.78 : 96,772.59 = 38,290.46 : x
  2. Step 2: Convert to fraction form
    70,127.78/96,772.59 = 38,290.46/x
  3. Step 3: Cross multiply
    70,127.78x = 96,772.59 × 38,290.46
  4. Step 4: Simplify right side
    70,127.78x = 3,705,466,502.63
  5. Step 5: Solve for x
    x = 3,705,466,502.63/70,127.78
  6. Step 6: Final answer
    x = 52,838.79

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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.