Home / 53,660.66-74,055.15-31,000.61

Finding the Fourth Proportional to 53,660.66, 74,055.15 and 31,000.61

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Solution

The fourth proportional to 53,660.66, 74,055.15 and 31,000.61 is: 42,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,660.66 : 74,055.15 = 31,000.61 : x
  2. Step 2: Convert to fraction form
    53,660.66/74,055.15 = 31,000.61/x
  3. Step 3: Cross multiply
    53,660.66x = 74,055.15 × 31,000.61
  4. Step 4: Simplify right side
    53,660.66x = 2,295,754,453.37
  5. Step 5: Solve for x
    x = 2,295,754,453.37/53,660.66
  6. Step 6: Final answer
    x = 42,782.83

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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.