Home / 85,427.28-128,151.18-35,541.14

Finding the Fourth Proportional to 85,427.28, 128,151.18 and 35,541.14

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Solution

The fourth proportional to 85,427.28, 128,151.18 and 35,541.14 is: 53,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,427.28 : 128,151.18 = 35,541.14 : x
  2. Step 2: Convert to fraction form
    85,427.28/128,151.18 = 35,541.14/x
  3. Step 3: Cross multiply
    85,427.28x = 128,151.18 × 35,541.14
  4. Step 4: Simplify right side
    85,427.28x = 4,554,639,029.55
  5. Step 5: Solve for x
    x = 4,554,639,029.55/85,427.28
  6. Step 6: Final answer
    x = 53,315.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.