Home / 51,384.96-70,907.32-31,239.05

Finding the Fourth Proportional to 51,384.96, 70,907.32 and 31,239.05

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Solution

The fourth proportional to 51,384.96, 70,907.32 and 31,239.05 is: 43,107.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.96 : 70,907.32 = 31,239.05 : x
  2. Step 2: Convert to fraction form
    51,384.96/70,907.32 = 31,239.05/x
  3. Step 3: Cross multiply
    51,384.96x = 70,907.32 × 31,239.05
  4. Step 4: Simplify right side
    51,384.96x = 2,215,076,882.21
  5. Step 5: Solve for x
    x = 2,215,076,882.21/51,384.96
  6. Step 6: Final answer
    x = 43,107.49

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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.