Home / 65,661.02-90,591.17-38,812.56

Finding the Fourth Proportional to 65,661.02, 90,591.17 and 38,812.56

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Solution

The fourth proportional to 65,661.02, 90,591.17 and 38,812.56 is: 53,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,661.02 : 90,591.17 = 38,812.56 : x
  2. Step 2: Convert to fraction form
    65,661.02/90,591.17 = 38,812.56/x
  3. Step 3: Cross multiply
    65,661.02x = 90,591.17 × 38,812.56
  4. Step 4: Simplify right side
    65,661.02x = 3,516,075,221.10
  5. Step 5: Solve for x
    x = 3,516,075,221.10/65,661.02
  6. Step 6: Final answer
    x = 53,548.90

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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.