Home / 74,011.20-102,133.36-40,475.04

Finding the Fourth Proportional to 74,011.20, 102,133.36 and 40,475.04

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Solution

The fourth proportional to 74,011.20, 102,133.36 and 40,475.04 is: 55,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,011.20 : 102,133.36 = 40,475.04 : x
  2. Step 2: Convert to fraction form
    74,011.20/102,133.36 = 40,475.04/x
  3. Step 3: Cross multiply
    74,011.20x = 102,133.36 × 40,475.04
  4. Step 4: Simplify right side
    74,011.20x = 4,133,851,831.33
  5. Step 5: Solve for x
    x = 4,133,851,831.33/74,011.20
  6. Step 6: Final answer
    x = 55,854.41

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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.