Home / 74,109.93-102,271.01-40,117.55

Finding the Fourth Proportional to 74,109.93, 102,271.01 and 40,117.55

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Solution

The fourth proportional to 74,109.93, 102,271.01 and 40,117.55 is: 55,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.93 : 102,271.01 = 40,117.55 : x
  2. Step 2: Convert to fraction form
    74,109.93/102,271.01 = 40,117.55/x
  3. Step 3: Cross multiply
    74,109.93x = 102,271.01 × 40,117.55
  4. Step 4: Simplify right side
    74,109.93x = 4,102,861,795.72
  5. Step 5: Solve for x
    x = 4,102,861,795.72/74,109.93
  6. Step 6: Final answer
    x = 55,361.84

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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.