Home / 45,804.12-63,218.90-31,307.02

Finding the Fourth Proportional to 45,804.12, 63,218.90 and 31,307.02

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Solution

The fourth proportional to 45,804.12, 63,218.90 and 31,307.02 is: 43,209.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,804.12 : 63,218.90 = 31,307.02 : x
  2. Step 2: Convert to fraction form
    45,804.12/63,218.90 = 31,307.02/x
  3. Step 3: Cross multiply
    45,804.12x = 63,218.90 × 31,307.02
  4. Step 4: Simplify right side
    45,804.12x = 1,979,195,366.68
  5. Step 5: Solve for x
    x = 1,979,195,366.68/45,804.12
  6. Step 6: Final answer
    x = 43,209.99

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Why These Related Problems?

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