Home / 66,603.36-99,954.30-31,543.08

Finding the Fourth Proportional to 66,603.36, 99,954.30 and 31,543.08

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Solution

The fourth proportional to 66,603.36, 99,954.30 and 31,543.08 is: 47,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603.36 : 99,954.30 = 31,543.08 : x
  2. Step 2: Convert to fraction form
    66,603.36/99,954.30 = 31,543.08/x
  3. Step 3: Cross multiply
    66,603.36x = 99,954.30 × 31,543.08
  4. Step 4: Simplify right side
    66,603.36x = 3,152,866,481.24
  5. Step 5: Solve for x
    x = 3,152,866,481.24/66,603.36
  6. Step 6: Final answer
    x = 47,337.95

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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.