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Finding the Fourth Proportional to 72,555.58, 100,113.87 and 44,270.38

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Solution

The fourth proportional to 72,555.58, 100,113.87 and 44,270.38 is: 61,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555.58 : 100,113.87 = 44,270.38 : x
  2. Step 2: Convert to fraction form
    72,555.58/100,113.87 = 44,270.38/x
  3. Step 3: Cross multiply
    72,555.58x = 100,113.87 × 44,270.38
  4. Step 4: Simplify right side
    72,555.58x = 4,432,079,068.17
  5. Step 5: Solve for x
    x = 4,432,079,068.17/72,555.58
  6. Step 6: Final answer
    x = 61,085.30

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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.