Home / 85,499.52-128,278.44-46,060.68

Finding the Fourth Proportional to 85,499.52, 128,278.44 and 46,060.68

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Solution

The fourth proportional to 85,499.52, 128,278.44 and 46,060.68 is: 69,106.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,499.52 : 128,278.44 = 46,060.68 : x
  2. Step 2: Convert to fraction form
    85,499.52/128,278.44 = 46,060.68/x
  3. Step 3: Cross multiply
    85,499.52x = 128,278.44 × 46,060.68
  4. Step 4: Simplify right side
    85,499.52x = 5,908,592,175.74
  5. Step 5: Solve for x
    x = 5,908,592,175.74/85,499.52
  6. Step 6: Final answer
    x = 69,106.73

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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.