Home / 51,810.02-71,520.97-39,868.90

Finding the Fourth Proportional to 51,810.02, 71,520.97 and 39,868.90

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Solution

The fourth proportional to 51,810.02, 71,520.97 and 39,868.90 is: 55,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,810.02 : 71,520.97 = 39,868.90 : x
  2. Step 2: Convert to fraction form
    51,810.02/71,520.97 = 39,868.90/x
  3. Step 3: Cross multiply
    51,810.02x = 71,520.97 × 39,868.90
  4. Step 4: Simplify right side
    51,810.02x = 2,851,462,400.83
  5. Step 5: Solve for x
    x = 2,851,462,400.83/51,810.02
  6. Step 6: Final answer
    x = 55,036.89

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1.5x scale

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.