Home / 76,325.52-105,381.45-47,688.87

Finding the Fourth Proportional to 76,325.52, 105,381.45 and 47,688.87

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Solution

The fourth proportional to 76,325.52, 105,381.45 and 47,688.87 is: 65,843.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,325.52 : 105,381.45 = 47,688.87 : x
  2. Step 2: Convert to fraction form
    76,325.52/105,381.45 = 47,688.87/x
  3. Step 3: Cross multiply
    76,325.52x = 105,381.45 × 47,688.87
  4. Step 4: Simplify right side
    76,325.52x = 5,025,522,269.46
  5. Step 5: Solve for x
    x = 5,025,522,269.46/76,325.52
  6. Step 6: Final answer
    x = 65,843.28

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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.