Home / 77,660.15-116,319.48-64,180.38

Finding the Fourth Proportional to 77,660.15, 116,319.48 and 64,180.38

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Solution

The fourth proportional to 77,660.15, 116,319.48 and 64,180.38 is: 96,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,660.15 : 116,319.48 = 64,180.38 : x
  2. Step 2: Convert to fraction form
    77,660.15/116,319.48 = 64,180.38/x
  3. Step 3: Cross multiply
    77,660.15x = 116,319.48 × 64,180.38
  4. Step 4: Simplify right side
    77,660.15x = 7,465,427,846.21
  5. Step 5: Solve for x
    x = 7,465,427,846.21/77,660.15
  6. Step 6: Final answer
    x = 96,129.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.