Home / 82,983.40-124,475.10-72,615.40

Finding the Fourth Proportional to 82,983.40, 124,475.10 and 72,615.40

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Solution

The fourth proportional to 82,983.40, 124,475.10 and 72,615.40 is: 108,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,983.40 : 124,475.10 = 72,615.40 : x
  2. Step 2: Convert to fraction form
    82,983.40/124,475.10 = 72,615.40/x
  3. Step 3: Cross multiply
    82,983.40x = 124,475.10 × 72,615.40
  4. Step 4: Simplify right side
    82,983.40x = 9,038,809,176.54
  5. Step 5: Solve for x
    x = 9,038,809,176.54/82,983.40
  6. Step 6: Final answer
    x = 108,923.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.