Home / 53,653.12-74,024.17-30,989.12

Finding the Fourth Proportional to 53,653.12, 74,024.17 and 30,989.12

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Solution

The fourth proportional to 53,653.12, 74,024.17 and 30,989.12 is: 42,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,653.12 : 74,024.17 = 30,989.12 : x
  2. Step 2: Convert to fraction form
    53,653.12/74,024.17 = 30,989.12/x
  3. Step 3: Cross multiply
    53,653.12x = 74,024.17 × 30,989.12
  4. Step 4: Simplify right side
    53,653.12x = 2,293,943,439.44
  5. Step 5: Solve for x
    x = 2,293,943,439.44/53,653.12
  6. Step 6: Final answer
    x = 42,755.08

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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.