Home / 74,422.13-102,703.61-40,431.22

Finding the Fourth Proportional to 74,422.13, 102,703.61 and 40,431.22

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Solution

The fourth proportional to 74,422.13, 102,703.61 and 40,431.22 is: 55,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.13 : 102,703.61 = 40,431.22 : x
  2. Step 2: Convert to fraction form
    74,422.13/102,703.61 = 40,431.22/x
  3. Step 3: Cross multiply
    74,422.13x = 102,703.61 × 40,431.22
  4. Step 4: Simplify right side
    74,422.13x = 4,152,432,095.02
  5. Step 5: Solve for x
    x = 4,152,432,095.02/74,422.13
  6. Step 6: Final answer
    x = 55,795.67

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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.