Home / 66,990.28-92,427.66-43,130.76

Finding the Fourth Proportional to 66,990.28, 92,427.66 and 43,130.76

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Solution

The fourth proportional to 66,990.28, 92,427.66 and 43,130.76 is: 59,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,990.28 : 92,427.66 = 43,130.76 : x
  2. Step 2: Convert to fraction form
    66,990.28/92,427.66 = 43,130.76/x
  3. Step 3: Cross multiply
    66,990.28x = 92,427.66 × 43,130.76
  4. Step 4: Simplify right side
    66,990.28x = 3,986,475,220.82
  5. Step 5: Solve for x
    x = 3,986,475,220.82/66,990.28
  6. Step 6: Final answer
    x = 59,508.26

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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.