Home / 74,828.16-112,145.27-30,403.35

Finding the Fourth Proportional to 74,828.16, 112,145.27 and 30,403.35

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Solution

The fourth proportional to 74,828.16, 112,145.27 and 30,403.35 is: 45,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,828.16 : 112,145.27 = 30,403.35 : x
  2. Step 2: Convert to fraction form
    74,828.16/112,145.27 = 30,403.35/x
  3. Step 3: Cross multiply
    74,828.16x = 112,145.27 × 30,403.35
  4. Step 4: Simplify right side
    74,828.16x = 3,409,591,742.64
  5. Step 5: Solve for x
    x = 3,409,591,742.64/74,828.16
  6. Step 6: Final answer
    x = 45,565.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.