Home / 74,012.24-102,134.80-40,477.52

Finding the Fourth Proportional to 74,012.24, 102,134.80 and 40,477.52

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Solution

The fourth proportional to 74,012.24, 102,134.80 and 40,477.52 is: 55,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,012.24 : 102,134.80 = 40,477.52 : x
  2. Step 2: Convert to fraction form
    74,012.24/102,134.80 = 40,477.52/x
  3. Step 3: Cross multiply
    74,012.24x = 102,134.80 × 40,477.52
  4. Step 4: Simplify right side
    74,012.24x = 4,134,163,409.70
  5. Step 5: Solve for x
    x = 4,134,163,409.70/74,012.24
  6. Step 6: Final answer
    x = 55,857.83

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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.