Home / 82,282.68-113,465.16-70,385.40

Finding the Fourth Proportional to 82,282.68, 113,465.16 and 70,385.40

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Solution

The fourth proportional to 82,282.68, 113,465.16 and 70,385.40 is: 97,059.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,282.68 : 113,465.16 = 70,385.40 : x
  2. Step 2: Convert to fraction form
    82,282.68/113,465.16 = 70,385.40/x
  3. Step 3: Cross multiply
    82,282.68x = 113,465.16 × 70,385.40
  4. Step 4: Simplify right side
    82,282.68x = 7,986,290,672.66
  5. Step 5: Solve for x
    x = 7,986,290,672.66/82,282.68
  6. Step 6: Final answer
    x = 97,059.19

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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.