Home / 82,920.32-114,314.10-70,122.10

Finding the Fourth Proportional to 82,920.32, 114,314.10 and 70,122.10

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Solution

The fourth proportional to 82,920.32, 114,314.10 and 70,122.10 is: 96,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,920.32 : 114,314.10 = 70,122.10 : x
  2. Step 2: Convert to fraction form
    82,920.32/114,314.10 = 70,122.10/x
  3. Step 3: Cross multiply
    82,920.32x = 114,314.10 × 70,122.10
  4. Step 4: Simplify right side
    82,920.32x = 8,015,944,751.61
  5. Step 5: Solve for x
    x = 8,015,944,751.61/82,920.32
  6. Step 6: Final answer
    x = 96,670.45

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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.