Home / 76,683.53-105,820.67-43,143.05

Finding the Fourth Proportional to 76,683.53, 105,820.67 and 43,143.05

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Solution

The fourth proportional to 76,683.53, 105,820.67 and 43,143.05 is: 59,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,683.53 : 105,820.67 = 43,143.05 : x
  2. Step 2: Convert to fraction form
    76,683.53/105,820.67 = 43,143.05/x
  3. Step 3: Cross multiply
    76,683.53x = 105,820.67 × 43,143.05
  4. Step 4: Simplify right side
    76,683.53x = 4,565,426,456.84
  5. Step 5: Solve for x
    x = 4,565,426,456.84/76,683.53
  6. Step 6: Final answer
    x = 59,535.95

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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.