Home / 77,756.21-107,205.48-50,856.11

Finding the Fourth Proportional to 77,756.21, 107,205.48 and 50,856.11

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Solution

The fourth proportional to 77,756.21, 107,205.48 and 50,856.11 is: 70,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,756.21 : 107,205.48 = 50,856.11 : x
  2. Step 2: Convert to fraction form
    77,756.21/107,205.48 = 50,856.11/x
  3. Step 3: Cross multiply
    77,756.21x = 107,205.48 × 50,856.11
  4. Step 4: Simplify right side
    77,756.21x = 5,452,053,683.48
  5. Step 5: Solve for x
    x = 5,452,053,683.48/77,756.21
  6. Step 6: Final answer
    x = 70,117.28

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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.