Home / 71,030.28-98,026.20-40,405.16

Finding the Fourth Proportional to 71,030.28, 98,026.20 and 40,405.16

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Solution

The fourth proportional to 71,030.28, 98,026.20 and 40,405.16 is: 55,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,030.28 : 98,026.20 = 40,405.16 : x
  2. Step 2: Convert to fraction form
    71,030.28/98,026.20 = 40,405.16/x
  3. Step 3: Cross multiply
    71,030.28x = 98,026.20 × 40,405.16
  4. Step 4: Simplify right side
    71,030.28x = 3,960,764,295.19
  5. Step 5: Solve for x
    x = 3,960,764,295.19/71,030.28
  6. Step 6: Final answer
    x = 55,761.63

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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.