Home / 66,591.51-99,936.40-31,531.11

Finding the Fourth Proportional to 66,591.51, 99,936.40 and 31,531.11

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Solution

The fourth proportional to 66,591.51, 99,936.40 and 31,531.11 is: 47,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.51 : 99,936.40 = 31,531.11 : x
  2. Step 2: Convert to fraction form
    66,591.51/99,936.40 = 31,531.11/x
  3. Step 3: Cross multiply
    66,591.51x = 99,936.40 × 31,531.11
  4. Step 4: Simplify right side
    66,591.51x = 3,151,105,621.40
  5. Step 5: Solve for x
    x = 3,151,105,621.40/66,591.51
  6. Step 6: Final answer
    x = 47,319.93

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Why These Related Problems?

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