Home / 55,811.02-77,020.49-30,318.40

Finding the Fourth Proportional to 55,811.02, 77,020.49 and 30,318.40

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Solution

The fourth proportional to 55,811.02, 77,020.49 and 30,318.40 is: 41,840.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,811.02 : 77,020.49 = 30,318.40 : x
  2. Step 2: Convert to fraction form
    55,811.02/77,020.49 = 30,318.40/x
  3. Step 3: Cross multiply
    55,811.02x = 77,020.49 × 30,318.40
  4. Step 4: Simplify right side
    55,811.02x = 2,335,138,024.02
  5. Step 5: Solve for x
    x = 2,335,138,024.02/55,811.02
  6. Step 6: Final answer
    x = 41,840.09

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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.