Home / 91,607.64-137,431.04-28,426.36

Finding the Fourth Proportional to 91,607.64, 137,431.04 and 28,426.36

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Solution

The fourth proportional to 91,607.64, 137,431.04 and 28,426.36 is: 42,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,607.64 : 137,431.04 = 28,426.36 : x
  2. Step 2: Convert to fraction form
    91,607.64/137,431.04 = 28,426.36/x
  3. Step 3: Cross multiply
    91,607.64x = 137,431.04 × 28,426.36
  4. Step 4: Simplify right side
    91,607.64x = 3,906,664,218.21
  5. Step 5: Solve for x
    x = 3,906,664,218.21/91,607.64
  6. Step 6: Final answer
    x = 42,645.62

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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.