Home / 57,129.47-78,814.22-34,455.56

Finding the Fourth Proportional to 57,129.47, 78,814.22 and 34,455.56

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Solution

The fourth proportional to 57,129.47, 78,814.22 and 34,455.56 is: 47,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129.47 : 78,814.22 = 34,455.56 : x
  2. Step 2: Convert to fraction form
    57,129.47/78,814.22 = 34,455.56/x
  3. Step 3: Cross multiply
    57,129.47x = 78,814.22 × 34,455.56
  4. Step 4: Simplify right side
    57,129.47x = 2,715,587,519.71
  5. Step 5: Solve for x
    x = 2,715,587,519.71/57,129.47
  6. Step 6: Final answer
    x = 47,533.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.