Home / 45,703.20-68,521.64-30,875.36

Finding the Fourth Proportional to 45,703.20, 68,521.64 and 30,875.36

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Solution

The fourth proportional to 45,703.20, 68,521.64 and 30,875.36 is: 46,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,703.20 : 68,521.64 = 30,875.36 : x
  2. Step 2: Convert to fraction form
    45,703.20/68,521.64 = 30,875.36/x
  3. Step 3: Cross multiply
    45,703.20x = 68,521.64 × 30,875.36
  4. Step 4: Simplify right side
    45,703.20x = 2,115,630,302.79
  5. Step 5: Solve for x
    x = 2,115,630,302.79/45,703.20
  6. Step 6: Final answer
    x = 46,290.64

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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.