Home / 85,606.16-128,159.40-49,958.24

Finding the Fourth Proportional to 85,606.16, 128,159.40 and 49,958.24

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Solution

The fourth proportional to 85,606.16, 128,159.40 and 49,958.24 is: 74,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,606.16 : 128,159.40 = 49,958.24 : x
  2. Step 2: Convert to fraction form
    85,606.16/128,159.40 = 49,958.24/x
  3. Step 3: Cross multiply
    85,606.16x = 128,159.40 × 49,958.24
  4. Step 4: Simplify right side
    85,606.16x = 6,402,618,063.46
  5. Step 5: Solve for x
    x = 6,402,618,063.46/85,606.16
  6. Step 6: Final answer
    x = 74,791.56

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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.