Home / 53,673.74-80,510.61-20,385.93

Finding the Fourth Proportional to 53,673.74, 80,510.61 and 20,385.93

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Solution

The fourth proportional to 53,673.74, 80,510.61 and 20,385.93 is: 30,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,673.74 : 80,510.61 = 20,385.93 : x
  2. Step 2: Convert to fraction form
    53,673.74/80,510.61 = 20,385.93/x
  3. Step 3: Cross multiply
    53,673.74x = 80,510.61 × 20,385.93
  4. Step 4: Simplify right side
    53,673.74x = 1,641,283,470.54
  5. Step 5: Solve for x
    x = 1,641,283,470.54/53,673.74
  6. Step 6: Final answer
    x = 30,578.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.