Home / 70,989.10-97,966.80-38,724.26

Finding the Fourth Proportional to 70,989.10, 97,966.80 and 38,724.26

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Solution

The fourth proportional to 70,989.10, 97,966.80 and 38,724.26 is: 53,440.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,989.10 : 97,966.80 = 38,724.26 : x
  2. Step 2: Convert to fraction form
    70,989.10/97,966.80 = 38,724.26/x
  3. Step 3: Cross multiply
    70,989.10x = 97,966.80 × 38,724.26
  4. Step 4: Simplify right side
    70,989.10x = 3,793,692,079.49
  5. Step 5: Solve for x
    x = 3,793,692,079.49/70,989.10
  6. Step 6: Final answer
    x = 53,440.49

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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.