Home / 45,354.91-68,040.58-18,686.07

Finding the Fourth Proportional to 45,354.91, 68,040.58 and 18,686.07

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Solution

The fourth proportional to 45,354.91, 68,040.58 and 18,686.07 is: 28,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,354.91 : 68,040.58 = 18,686.07 : x
  2. Step 2: Convert to fraction form
    45,354.91/68,040.58 = 18,686.07/x
  3. Step 3: Cross multiply
    45,354.91x = 68,040.58 × 18,686.07
  4. Step 4: Simplify right side
    45,354.91x = 1,271,411,040.72
  5. Step 5: Solve for x
    x = 1,271,411,040.72/45,354.91
  6. Step 6: Final answer
    x = 28,032.49

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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.