Home / 49,637.02-68,515.05-31,780.12

Finding the Fourth Proportional to 49,637.02, 68,515.05 and 31,780.12

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Solution

The fourth proportional to 49,637.02, 68,515.05 and 31,780.12 is: 43,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,637.02 : 68,515.05 = 31,780.12 : x
  2. Step 2: Convert to fraction form
    49,637.02/68,515.05 = 31,780.12/x
  3. Step 3: Cross multiply
    49,637.02x = 68,515.05 × 31,780.12
  4. Step 4: Simplify right side
    49,637.02x = 2,177,416,510.81
  5. Step 5: Solve for x
    x = 2,177,416,510.81/49,637.02
  6. Step 6: Final answer
    x = 43,866.79

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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.