Home / 72,477.23-100,019.30-40,645.44

Finding the Fourth Proportional to 72,477.23, 100,019.30 and 40,645.44

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Solution

The fourth proportional to 72,477.23, 100,019.30 and 40,645.44 is: 56,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,477.23 : 100,019.30 = 40,645.44 : x
  2. Step 2: Convert to fraction form
    72,477.23/100,019.30 = 40,645.44/x
  3. Step 3: Cross multiply
    72,477.23x = 100,019.30 × 40,645.44
  4. Step 4: Simplify right side
    72,477.23x = 4,065,328,253.76
  5. Step 5: Solve for x
    x = 4,065,328,253.76/72,477.23
  6. Step 6: Final answer
    x = 56,091.11

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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.