Home / 53,853.14-74,315.64-29,978.62

Finding the Fourth Proportional to 53,853.14, 74,315.64 and 29,978.62

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Solution

The fourth proportional to 53,853.14, 74,315.64 and 29,978.62 is: 41,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,853.14 : 74,315.64 = 29,978.62 : x
  2. Step 2: Convert to fraction form
    53,853.14/74,315.64 = 29,978.62/x
  3. Step 3: Cross multiply
    53,853.14x = 74,315.64 × 29,978.62
  4. Step 4: Simplify right side
    53,853.14x = 2,227,880,331.62
  5. Step 5: Solve for x
    x = 2,227,880,331.62/53,853.14
  6. Step 6: Final answer
    x = 41,369.55

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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.