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Finding the Fourth Proportional to 61,618.40, 92,427.60 and 57,730.40

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Solution

The fourth proportional to 61,618.40, 92,427.60 and 57,730.40 is: 86,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,618.40 : 92,427.60 = 57,730.40 : x
  2. Step 2: Convert to fraction form
    61,618.40/92,427.60 = 57,730.40/x
  3. Step 3: Cross multiply
    61,618.40x = 92,427.60 × 57,730.40
  4. Step 4: Simplify right side
    61,618.40x = 5,335,882,319.04
  5. Step 5: Solve for x
    x = 5,335,882,319.04/61,618.40
  6. Step 6: Final answer
    x = 86,595.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.