Home / 55,772.18-76,943.70-31,886.04

Finding the Fourth Proportional to 55,772.18, 76,943.70 and 31,886.04

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Solution

The fourth proportional to 55,772.18, 76,943.70 and 31,886.04 is: 43,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,772.18 : 76,943.70 = 31,886.04 : x
  2. Step 2: Convert to fraction form
    55,772.18/76,943.70 = 31,886.04/x
  3. Step 3: Cross multiply
    55,772.18x = 76,943.70 × 31,886.04
  4. Step 4: Simplify right side
    55,772.18x = 2,453,429,895.95
  5. Step 5: Solve for x
    x = 2,453,429,895.95/55,772.18
  6. Step 6: Final answer
    x = 43,990.21

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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.