Home / 71,931.44-99,265.82-40,102.36

Finding the Fourth Proportional to 71,931.44, 99,265.82 and 40,102.36

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Solution

The fourth proportional to 71,931.44, 99,265.82 and 40,102.36 is: 55,341.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,931.44 : 99,265.82 = 40,102.36 : x
  2. Step 2: Convert to fraction form
    71,931.44/99,265.82 = 40,102.36/x
  3. Step 3: Cross multiply
    71,931.44x = 99,265.82 × 40,102.36
  4. Step 4: Simplify right side
    71,931.44x = 3,980,793,649.34
  5. Step 5: Solve for x
    x = 3,980,793,649.34/71,931.44
  6. Step 6: Final answer
    x = 55,341.50

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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.