Home / 81,341.62-112,246.16-45,531.32

Finding the Fourth Proportional to 81,341.62, 112,246.16 and 45,531.32

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Solution

The fourth proportional to 81,341.62, 112,246.16 and 45,531.32 is: 62,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,341.62 : 112,246.16 = 45,531.32 : x
  2. Step 2: Convert to fraction form
    81,341.62/112,246.16 = 45,531.32/x
  3. Step 3: Cross multiply
    81,341.62x = 112,246.16 × 45,531.32
  4. Step 4: Simplify right side
    81,341.62x = 5,110,715,040.84
  5. Step 5: Solve for x
    x = 5,110,715,040.84/81,341.62
  6. Step 6: Final answer
    x = 62,830.26

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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.