Home / 72,741.03-100,367.57-42,520.51

Finding the Fourth Proportional to 72,741.03, 100,367.57 and 42,520.51

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Solution

The fourth proportional to 72,741.03, 100,367.57 and 42,520.51 is: 58,669.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,741.03 : 100,367.57 = 42,520.51 : x
  2. Step 2: Convert to fraction form
    72,741.03/100,367.57 = 42,520.51/x
  3. Step 3: Cross multiply
    72,741.03x = 100,367.57 × 42,520.51
  4. Step 4: Simplify right side
    72,741.03x = 4,267,680,263.86
  5. Step 5: Solve for x
    x = 4,267,680,263.86/72,741.03
  6. Step 6: Final answer
    x = 58,669.51

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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.