Home / 81,353.45-112,248.42-47,341.35

Finding the Fourth Proportional to 81,353.45, 112,248.42 and 47,341.35

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Solution

The fourth proportional to 81,353.45, 112,248.42 and 47,341.35 is: 65,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,353.45 : 112,248.42 = 47,341.35 : x
  2. Step 2: Convert to fraction form
    81,353.45/112,248.42 = 47,341.35/x
  3. Step 3: Cross multiply
    81,353.45x = 112,248.42 × 47,341.35
  4. Step 4: Simplify right side
    81,353.45x = 5,313,991,738.17
  5. Step 5: Solve for x
    x = 5,313,991,738.17/81,353.45
  6. Step 6: Final answer
    x = 65,319.81

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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.