Home / 51,309.30-70,807.94-28,339.06

Finding the Fourth Proportional to 51,309.30, 70,807.94 and 28,339.06

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Solution

The fourth proportional to 51,309.30, 70,807.94 and 28,339.06 is: 39,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,309.30 : 70,807.94 = 28,339.06 : x
  2. Step 2: Convert to fraction form
    51,309.30/70,807.94 = 28,339.06/x
  3. Step 3: Cross multiply
    51,309.30x = 70,807.94 × 28,339.06
  4. Step 4: Simplify right side
    51,309.30x = 2,006,630,460.14
  5. Step 5: Solve for x
    x = 2,006,630,460.14/51,309.30
  6. Step 6: Final answer
    x = 39,108.51

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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.