Home / 52,811.19-78,807.33-47,202.75

Finding the Fourth Proportional to 52,811.19, 78,807.33 and 47,202.75

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Solution

The fourth proportional to 52,811.19, 78,807.33 and 47,202.75 is: 70,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.19 : 78,807.33 = 47,202.75 : x
  2. Step 2: Convert to fraction form
    52,811.19/78,807.33 = 47,202.75/x
  3. Step 3: Cross multiply
    52,811.19x = 78,807.33 × 47,202.75
  4. Step 4: Simplify right side
    52,811.19x = 3,719,922,696.16
  5. Step 5: Solve for x
    x = 3,719,922,696.16/52,811.19
  6. Step 6: Final answer
    x = 70,438.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.