Home / 66,643.22-99,895.16-31,541.06

Finding the Fourth Proportional to 66,643.22, 99,895.16 and 31,541.06

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Solution

The fourth proportional to 66,643.22, 99,895.16 and 31,541.06 is: 47,278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,643.22 : 99,895.16 = 31,541.06 : x
  2. Step 2: Convert to fraction form
    66,643.22/99,895.16 = 31,541.06/x
  3. Step 3: Cross multiply
    66,643.22x = 99,895.16 × 31,541.06
  4. Step 4: Simplify right side
    66,643.22x = 3,150,799,235.27
  5. Step 5: Solve for x
    x = 3,150,799,235.27/66,643.22
  6. Step 6: Final answer
    x = 47,278.62

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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.