Home / 81,225.07-112,045.58-47,229.81

Finding the Fourth Proportional to 81,225.07, 112,045.58 and 47,229.81

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Solution

The fourth proportional to 81,225.07, 112,045.58 and 47,229.81 is: 65,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,225.07 : 112,045.58 = 47,229.81 : x
  2. Step 2: Convert to fraction form
    81,225.07/112,045.58 = 47,229.81/x
  3. Step 3: Cross multiply
    81,225.07x = 112,045.58 × 47,229.81
  4. Step 4: Simplify right side
    81,225.07x = 5,291,890,975.53
  5. Step 5: Solve for x
    x = 5,291,890,975.53/81,225.07
  6. Step 6: Final answer
    x = 65,150.96

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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.