Home / 40,474.45-55,870.14-30,432.06

Finding the Fourth Proportional to 40,474.45, 55,870.14 and 30,432.06

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Solution

The fourth proportional to 40,474.45, 55,870.14 and 30,432.06 is: 42,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,474.45 : 55,870.14 = 30,432.06 : x
  2. Step 2: Convert to fraction form
    40,474.45/55,870.14 = 30,432.06/x
  3. Step 3: Cross multiply
    40,474.45x = 55,870.14 × 30,432.06
  4. Step 4: Simplify right side
    40,474.45x = 1,700,243,395.63
  5. Step 5: Solve for x
    x = 1,700,243,395.63/40,474.45
  6. Step 6: Final answer
    x = 42,007.82

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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.