Home / 81,747.51-112,810.56-45,943.58

Finding the Fourth Proportional to 81,747.51, 112,810.56 and 45,943.58

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Solution

The fourth proportional to 81,747.51, 112,810.56 and 45,943.58 is: 63,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,747.51 : 112,810.56 = 45,943.58 : x
  2. Step 2: Convert to fraction form
    81,747.51/112,810.56 = 45,943.58/x
  3. Step 3: Cross multiply
    81,747.51x = 112,810.56 × 45,943.58
  4. Step 4: Simplify right side
    81,747.51x = 5,182,920,424.15
  5. Step 5: Solve for x
    x = 5,182,920,424.15/81,747.51
  6. Step 6: Final answer
    x = 63,401.57

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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.