Home / 52,075.32-78,140.52-28,399.92

Finding the Fourth Proportional to 52,075.32, 78,140.52 and 28,399.92

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Solution

The fourth proportional to 52,075.32, 78,140.52 and 28,399.92 is: 42,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,075.32 : 78,140.52 = 28,399.92 : x
  2. Step 2: Convert to fraction form
    52,075.32/78,140.52 = 28,399.92/x
  3. Step 3: Cross multiply
    52,075.32x = 78,140.52 × 28,399.92
  4. Step 4: Simplify right side
    52,075.32x = 2,219,184,516.76
  5. Step 5: Solve for x
    x = 2,219,184,516.76/52,075.32
  6. Step 6: Final answer
    x = 42,614.90

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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.