Home / 97,877.91-135,081-54,864.72

Finding the Fourth Proportional to 97,877.91, 135,081 and 54,864.72

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Solution

The fourth proportional to 97,877.91, 135,081 and 54,864.72 is: 75,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,877.91 : 135,081 = 54,864.72 : x
  2. Step 2: Convert to fraction form
    97,877.91/135,081 = 54,864.72/x
  3. Step 3: Cross multiply
    97,877.91x = 135,081 × 54,864.72
  4. Step 4: Simplify right side
    97,877.91x = 7,411,181,242.32
  5. Step 5: Solve for x
    x = 7,411,181,242.32/97,877.91
  6. Step 6: Final answer
    x = 75,718.63

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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.