Home / 53,780.43-74,210.97-29,905.68

Finding the Fourth Proportional to 53,780.43, 74,210.97 and 29,905.68

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Solution

The fourth proportional to 53,780.43, 74,210.97 and 29,905.68 is: 41,266.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,780.43 : 74,210.97 = 29,905.68 : x
  2. Step 2: Convert to fraction form
    53,780.43/74,210.97 = 29,905.68/x
  3. Step 3: Cross multiply
    53,780.43x = 74,210.97 × 29,905.68
  4. Step 4: Simplify right side
    53,780.43x = 2,219,329,521.31
  5. Step 5: Solve for x
    x = 2,219,329,521.31/53,780.43
  6. Step 6: Final answer
    x = 41,266.49

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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.