Home / 74,216.25-102,424.91-40,688.73

Finding the Fourth Proportional to 74,216.25, 102,424.91 and 40,688.73

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Solution

The fourth proportional to 74,216.25, 102,424.91 and 40,688.73 is: 56,154.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,216.25 : 102,424.91 = 40,688.73 : x
  2. Step 2: Convert to fraction form
    74,216.25/102,424.91 = 40,688.73/x
  3. Step 3: Cross multiply
    74,216.25x = 102,424.91 × 40,688.73
  4. Step 4: Simplify right side
    74,216.25x = 4,167,539,304.82
  5. Step 5: Solve for x
    x = 4,167,539,304.82/74,216.25
  6. Step 6: Final answer
    x = 56,154.00

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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.