Home / 76,336.27-105,345.74-42,343.65

Finding the Fourth Proportional to 76,336.27, 105,345.74 and 42,343.65

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Solution

The fourth proportional to 76,336.27, 105,345.74 and 42,343.65 is: 58,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,336.27 : 105,345.74 = 42,343.65 : x
  2. Step 2: Convert to fraction form
    76,336.27/105,345.74 = 42,343.65/x
  3. Step 3: Cross multiply
    76,336.27x = 105,345.74 × 42,343.65
  4. Step 4: Simplify right side
    76,336.27x = 4,460,723,143.55
  5. Step 5: Solve for x
    x = 4,460,723,143.55/76,336.27
  6. Step 6: Final answer
    x = 58,435.17

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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.