Home / 74,974.93-103,468.18-40,985.67

Finding the Fourth Proportional to 74,974.93, 103,468.18 and 40,985.67

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Solution

The fourth proportional to 74,974.93, 103,468.18 and 40,985.67 is: 56,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,974.93 : 103,468.18 = 40,985.67 : x
  2. Step 2: Convert to fraction form
    74,974.93/103,468.18 = 40,985.67/x
  3. Step 3: Cross multiply
    74,974.93x = 103,468.18 × 40,985.67
  4. Step 4: Simplify right side
    74,974.93x = 4,240,712,680.98
  5. Step 5: Solve for x
    x = 4,240,712,680.98/74,974.93
  6. Step 6: Final answer
    x = 56,561.74

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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.