Home / 51,907.50-77,798.10-28,158.72

Finding the Fourth Proportional to 51,907.50, 77,798.10 and 28,158.72

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Solution

The fourth proportional to 51,907.50, 77,798.10 and 28,158.72 is: 42,203.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,907.50 : 77,798.10 = 28,158.72 : x
  2. Step 2: Convert to fraction form
    51,907.50/77,798.10 = 28,158.72/x
  3. Step 3: Cross multiply
    51,907.50x = 77,798.10 × 28,158.72
  4. Step 4: Simplify right side
    51,907.50x = 2,190,694,914.43
  5. Step 5: Solve for x
    x = 2,190,694,914.43/51,907.50
  6. Step 6: Final answer
    x = 42,203.82

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1.5x scale

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.