Home / 51,812.02-71,523.73-39,870.90

Finding the Fourth Proportional to 51,812.02, 71,523.73 and 39,870.90

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Solution

The fourth proportional to 51,812.02, 71,523.73 and 39,870.90 is: 55,039.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,812.02 : 71,523.73 = 39,870.90 : x
  2. Step 2: Convert to fraction form
    51,812.02/71,523.73 = 39,870.90/x
  3. Step 3: Cross multiply
    51,812.02x = 71,523.73 × 39,870.90
  4. Step 4: Simplify right side
    51,812.02x = 2,851,715,486.46
  5. Step 5: Solve for x
    x = 2,851,715,486.46/51,812.02
  6. Step 6: Final answer
    x = 55,039.65

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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.