Home / 40,303.08-60,478.94-28,712.68

Finding the Fourth Proportional to 40,303.08, 60,478.94 and 28,712.68

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Solution

The fourth proportional to 40,303.08, 60,478.94 and 28,712.68 is: 43,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,303.08 : 60,478.94 = 28,712.68 : x
  2. Step 2: Convert to fraction form
    40,303.08/60,478.94 = 28,712.68/x
  3. Step 3: Cross multiply
    40,303.08x = 60,478.94 × 28,712.68
  4. Step 4: Simplify right side
    40,303.08x = 1,736,512,450.96
  5. Step 5: Solve for x
    x = 1,736,512,450.96/40,303.08
  6. Step 6: Final answer
    x = 43,086.35

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1.5x scale

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.