Home / 70,966.16-97,928.82-40,730.20

Finding the Fourth Proportional to 70,966.16, 97,928.82 and 40,730.20

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Solution

The fourth proportional to 70,966.16, 97,928.82 and 40,730.20 is: 56,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,966.16 : 97,928.82 = 40,730.20 : x
  2. Step 2: Convert to fraction form
    70,966.16/97,928.82 = 40,730.20/x
  3. Step 3: Cross multiply
    70,966.16x = 97,928.82 × 40,730.20
  4. Step 4: Simplify right side
    70,966.16x = 3,988,660,179.54
  5. Step 5: Solve for x
    x = 3,988,660,179.54/70,966.16
  6. Step 6: Final answer
    x = 56,205.10

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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.