Home / 78,044.90-107,675.57-50,808.51

Finding the Fourth Proportional to 78,044.90, 107,675.57 and 50,808.51

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Solution

The fourth proportional to 78,044.90, 107,675.57 and 50,808.51 is: 70,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.90 : 107,675.57 = 50,808.51 : x
  2. Step 2: Convert to fraction form
    78,044.90/107,675.57 = 50,808.51/x
  3. Step 3: Cross multiply
    78,044.90x = 107,675.57 × 50,808.51
  4. Step 4: Simplify right side
    78,044.90x = 5,470,835,402.12
  5. Step 5: Solve for x
    x = 5,470,835,402.12/78,044.90
  6. Step 6: Final answer
    x = 70,098.57

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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.