Home / 85,476.65-128,174.73-49,948.24

Finding the Fourth Proportional to 85,476.65, 128,174.73 and 49,948.24

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Solution

The fourth proportional to 85,476.65, 128,174.73 and 49,948.24 is: 74,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,476.65 : 128,174.73 = 49,948.24 : x
  2. Step 2: Convert to fraction form
    85,476.65/128,174.73 = 49,948.24/x
  3. Step 3: Cross multiply
    85,476.65x = 128,174.73 × 49,948.24
  4. Step 4: Simplify right side
    85,476.65x = 6,402,102,139.32
  5. Step 5: Solve for x
    x = 6,402,102,139.32/85,476.65
  6. Step 6: Final answer
    x = 74,898.84

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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.