Home / 72,051.23-108,313.25-66,849.05

Finding the Fourth Proportional to 72,051.23, 108,313.25 and 66,849.05

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Solution

The fourth proportional to 72,051.23, 108,313.25 and 66,849.05 is: 100,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,051.23 : 108,313.25 = 66,849.05 : x
  2. Step 2: Convert to fraction form
    72,051.23/108,313.25 = 66,849.05/x
  3. Step 3: Cross multiply
    72,051.23x = 108,313.25 × 66,849.05
  4. Step 4: Simplify right side
    72,051.23x = 7,240,636,989.10
  5. Step 5: Solve for x
    x = 7,240,636,989.10/72,051.23
  6. Step 6: Final answer
    x = 100,492.91

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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.