Home / 213,629.90-320,417.04-55,870.52

Finding the Fourth Proportional to 213,629.90, 320,417.04 and 55,870.52

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Solution

The fourth proportional to 213,629.90, 320,417.04 and 55,870.52 is: 83,798.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,629.90 : 320,417.04 = 55,870.52 : x
  2. Step 2: Convert to fraction form
    213,629.90/320,417.04 = 55,870.52/x
  3. Step 3: Cross multiply
    213,629.90x = 320,417.04 × 55,870.52
  4. Step 4: Simplify right side
    213,629.90x = 17,901,866,641.66
  5. Step 5: Solve for x
    x = 17,901,866,641.66/213,629.90
  6. Step 6: Final answer
    x = 83,798.51

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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.