Home / 54,781.51-75,596.95-30,910.40

Finding the Fourth Proportional to 54,781.51, 75,596.95 and 30,910.40

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Solution

The fourth proportional to 54,781.51, 75,596.95 and 30,910.40 is: 42,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,781.51 : 75,596.95 = 30,910.40 : x
  2. Step 2: Convert to fraction form
    54,781.51/75,596.95 = 30,910.40/x
  3. Step 3: Cross multiply
    54,781.51x = 75,596.95 × 30,910.40
  4. Step 4: Simplify right side
    54,781.51x = 2,336,731,963.28
  5. Step 5: Solve for x
    x = 2,336,731,963.28/54,781.51
  6. Step 6: Final answer
    x = 42,655.49

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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.