Home / 78,220.35-107,943.43-44,235.51

Finding the Fourth Proportional to 78,220.35, 107,943.43 and 44,235.51

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Solution

The fourth proportional to 78,220.35, 107,943.43 and 44,235.51 is: 61,044.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,220.35 : 107,943.43 = 44,235.51 : x
  2. Step 2: Convert to fraction form
    78,220.35/107,943.43 = 44,235.51/x
  3. Step 3: Cross multiply
    78,220.35x = 107,943.43 × 44,235.51
  4. Step 4: Simplify right side
    78,220.35x = 4,774,932,631.30
  5. Step 5: Solve for x
    x = 4,774,932,631.30/78,220.35
  6. Step 6: Final answer
    x = 61,044.63

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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.