Home / 57,842.85-86,774.55-20,424.63

Finding the Fourth Proportional to 57,842.85, 86,774.55 and 20,424.63

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Solution

The fourth proportional to 57,842.85, 86,774.55 and 20,424.63 is: 30,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,842.85 : 86,774.55 = 20,424.63 : x
  2. Step 2: Convert to fraction form
    57,842.85/86,774.55 = 20,424.63/x
  3. Step 3: Cross multiply
    57,842.85x = 86,774.55 × 20,424.63
  4. Step 4: Simplify right side
    57,842.85x = 1,772,338,077.17
  5. Step 5: Solve for x
    x = 1,772,338,077.17/57,842.85
  6. Step 6: Final answer
    x = 30,640.57

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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.