Home / 77,895.68-107,370.10-60,870.34

Finding the Fourth Proportional to 77,895.68, 107,370.10 and 60,870.34

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Solution

The fourth proportional to 77,895.68, 107,370.10 and 60,870.34 is: 83,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,895.68 : 107,370.10 = 60,870.34 : x
  2. Step 2: Convert to fraction form
    77,895.68/107,370.10 = 60,870.34/x
  3. Step 3: Cross multiply
    77,895.68x = 107,370.10 × 60,870.34
  4. Step 4: Simplify right side
    77,895.68x = 6,535,654,492.83
  5. Step 5: Solve for x
    x = 6,535,654,492.83/77,895.68
  6. Step 6: Final answer
    x = 83,902.66

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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.