Home / 91,277.28-136,935.36-38,685.60

Finding the Fourth Proportional to 91,277.28, 136,935.36 and 38,685.60

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Solution

The fourth proportional to 91,277.28, 136,935.36 and 38,685.60 is: 58,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,277.28 : 136,935.36 = 38,685.60 : x
  2. Step 2: Convert to fraction form
    91,277.28/136,935.36 = 38,685.60/x
  3. Step 3: Cross multiply
    91,277.28x = 136,935.36 × 38,685.60
  4. Step 4: Simplify right side
    91,277.28x = 5,297,426,562.82
  5. Step 5: Solve for x
    x = 5,297,426,562.82/91,277.28
  6. Step 6: Final answer
    x = 58,036.64

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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.