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Finding the Fourth Proportional to 99,588.16, 137,429.88 and 54,266.44

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Solution

The fourth proportional to 99,588.16, 137,429.88 and 54,266.44 is: 74,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,588.16 : 137,429.88 = 54,266.44 : x
  2. Step 2: Convert to fraction form
    99,588.16/137,429.88 = 54,266.44/x
  3. Step 3: Cross multiply
    99,588.16x = 137,429.88 × 54,266.44
  4. Step 4: Simplify right side
    99,588.16x = 7,457,830,337.23
  5. Step 5: Solve for x
    x = 7,457,830,337.23/99,588.16
  6. Step 6: Final answer
    x = 74,886.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.