Home / 71,015.60-98,006.28-40,810.76

Finding the Fourth Proportional to 71,015.60, 98,006.28 and 40,810.76

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Solution

The fourth proportional to 71,015.60, 98,006.28 and 40,810.76 is: 56,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015.60 : 98,006.28 = 40,810.76 : x
  2. Step 2: Convert to fraction form
    71,015.60/98,006.28 = 40,810.76/x
  3. Step 3: Cross multiply
    71,015.60x = 98,006.28 × 40,810.76
  4. Step 4: Simplify right side
    71,015.60x = 3,999,710,771.57
  5. Step 5: Solve for x
    x = 3,999,710,771.57/71,015.60
  6. Step 6: Final answer
    x = 56,321.58

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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.