Home / 77,378.96-106,776.36-52,262.48

Finding the Fourth Proportional to 77,378.96, 106,776.36 and 52,262.48

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Solution

The fourth proportional to 77,378.96, 106,776.36 and 52,262.48 is: 72,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,378.96 : 106,776.36 = 52,262.48 : x
  2. Step 2: Convert to fraction form
    77,378.96/106,776.36 = 52,262.48/x
  3. Step 3: Cross multiply
    77,378.96x = 106,776.36 × 52,262.48
  4. Step 4: Simplify right side
    77,378.96x = 5,580,397,378.97
  5. Step 5: Solve for x
    x = 5,580,397,378.97/77,378.96
  6. Step 6: Final answer
    x = 72,117.76

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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.