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Finding the Fourth Proportional to 61,377.60, 86,103.60 and 61,377.60

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Solution

The fourth proportional to 61,377.60, 86,103.60 and 61,377.60 is: 86,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,377.60 : 86,103.60 = 61,377.60 : x
  2. Step 2: Convert to fraction form
    61,377.60/86,103.60 = 61,377.60/x
  3. Step 3: Cross multiply
    61,377.60x = 86,103.60 × 61,377.60
  4. Step 4: Simplify right side
    61,377.60x = 5,284,832,319.36
  5. Step 5: Solve for x
    x = 5,284,832,319.36/61,377.60
  6. Step 6: Final answer
    x = 86,103.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.