Home / 97,934.40-135,148.08-54,913.68

Finding the Fourth Proportional to 97,934.40, 135,148.08 and 54,913.68

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Solution

The fourth proportional to 97,934.40, 135,148.08 and 54,913.68 is: 75,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,934.40 : 135,148.08 = 54,913.68 : x
  2. Step 2: Convert to fraction form
    97,934.40/135,148.08 = 54,913.68/x
  3. Step 3: Cross multiply
    97,934.40x = 135,148.08 × 54,913.68
  4. Step 4: Simplify right side
    97,934.40x = 7,421,478,417.73
  5. Step 5: Solve for x
    x = 7,421,478,417.73/97,934.40
  6. Step 6: Final answer
    x = 75,780.10

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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.