Home / 74,449.04-102,739.64-40,915.04

Finding the Fourth Proportional to 74,449.04, 102,739.64 and 40,915.04

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Solution

The fourth proportional to 74,449.04, 102,739.64 and 40,915.04 is: 56,462.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,449.04 : 102,739.64 = 40,915.04 : x
  2. Step 2: Convert to fraction form
    74,449.04/102,739.64 = 40,915.04/x
  3. Step 3: Cross multiply
    74,449.04x = 102,739.64 × 40,915.04
  4. Step 4: Simplify right side
    74,449.04x = 4,203,596,480.19
  5. Step 5: Solve for x
    x = 4,203,596,480.19/74,449.04
  6. Step 6: Final answer
    x = 56,462.74

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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.