Home / 81,588.40-112,592.92-47,595.76

Finding the Fourth Proportional to 81,588.40, 112,592.92 and 47,595.76

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Solution

The fourth proportional to 81,588.40, 112,592.92 and 47,595.76 is: 65,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,588.40 : 112,592.92 = 47,595.76 : x
  2. Step 2: Convert to fraction form
    81,588.40/112,592.92 = 47,595.76/x
  3. Step 3: Cross multiply
    81,588.40x = 112,592.92 × 47,595.76
  4. Step 4: Simplify right side
    81,588.40x = 5,358,945,598.02
  5. Step 5: Solve for x
    x = 5,358,945,598.02/81,588.40
  6. Step 6: Final answer
    x = 65,682.69

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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.