Home / 53,878.74-74,391.93-38,799.78

Finding the Fourth Proportional to 53,878.74, 74,391.93 and 38,799.78

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Solution

The fourth proportional to 53,878.74, 74,391.93 and 38,799.78 is: 53,571.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,878.74 : 74,391.93 = 38,799.78 : x
  2. Step 2: Convert to fraction form
    53,878.74/74,391.93 = 38,799.78/x
  3. Step 3: Cross multiply
    53,878.74x = 74,391.93 × 38,799.78
  4. Step 4: Simplify right side
    53,878.74x = 2,886,390,517.78
  5. Step 5: Solve for x
    x = 2,886,390,517.78/53,878.74
  6. Step 6: Final answer
    x = 53,571.98

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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.