Home / 77,557.23-116,106.21-47,879.64

Finding the Fourth Proportional to 77,557.23, 116,106.21 and 47,879.64

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Solution

The fourth proportional to 77,557.23, 116,106.21 and 47,879.64 is: 71,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,557.23 : 116,106.21 = 47,879.64 : x
  2. Step 2: Convert to fraction form
    77,557.23/116,106.21 = 47,879.64/x
  3. Step 3: Cross multiply
    77,557.23x = 116,106.21 × 47,879.64
  4. Step 4: Simplify right side
    77,557.23x = 5,559,123,536.56
  5. Step 5: Solve for x
    x = 5,559,123,536.56/77,557.23
  6. Step 6: Final answer
    x = 71,677.70

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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.