Home / 97,765.52-134,826-61,894.40

Finding the Fourth Proportional to 97,765.52, 134,826 and 61,894.40

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Solution

The fourth proportional to 97,765.52, 134,826 and 61,894.40 is: 85,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,765.52 : 134,826 = 61,894.40 : x
  2. Step 2: Convert to fraction form
    97,765.52/134,826 = 61,894.40/x
  3. Step 3: Cross multiply
    97,765.52x = 134,826 × 61,894.40
  4. Step 4: Simplify right side
    97,765.52x = 8,344,974,374.40
  5. Step 5: Solve for x
    x = 8,344,974,374.40/97,765.52
  6. Step 6: Final answer
    x = 85,357.03

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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.