Home / 61,818.64-85,901.34-61,176.40

Finding the Fourth Proportional to 61,818.64, 85,901.34 and 61,176.40

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Solution

The fourth proportional to 61,818.64, 85,901.34 and 61,176.40 is: 85,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,818.64 : 85,901.34 = 61,176.40 : x
  2. Step 2: Convert to fraction form
    61,818.64/85,901.34 = 61,176.40/x
  3. Step 3: Cross multiply
    61,818.64x = 85,901.34 × 61,176.40
  4. Step 4: Simplify right side
    61,818.64x = 5,255,134,736.38
  5. Step 5: Solve for x
    x = 5,255,134,736.38/61,818.64
  6. Step 6: Final answer
    x = 85,008.90

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.