Home / 52,217.15-78,390.81-51,977.25

Finding the Fourth Proportional to 52,217.15, 78,390.81 and 51,977.25

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Solution

The fourth proportional to 52,217.15, 78,390.81 and 51,977.25 is: 78,030.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,217.15 : 78,390.81 = 51,977.25 : x
  2. Step 2: Convert to fraction form
    52,217.15/78,390.81 = 51,977.25/x
  3. Step 3: Cross multiply
    52,217.15x = 78,390.81 × 51,977.25
  4. Step 4: Simplify right side
    52,217.15x = 4,074,538,729.07
  5. Step 5: Solve for x
    x = 4,074,538,729.07/52,217.15
  6. Step 6: Final answer
    x = 78,030.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.