Home / 45,973.46-68,904.45-20,979.26

Finding the Fourth Proportional to 45,973.46, 68,904.45 and 20,979.26

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Solution

The fourth proportional to 45,973.46, 68,904.45 and 20,979.26 is: 31,443.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,973.46 : 68,904.45 = 20,979.26 : x
  2. Step 2: Convert to fraction form
    45,973.46/68,904.45 = 20,979.26/x
  3. Step 3: Cross multiply
    45,973.46x = 68,904.45 × 20,979.26
  4. Step 4: Simplify right side
    45,973.46x = 1,445,564,371.71
  5. Step 5: Solve for x
    x = 1,445,564,371.71/45,973.46
  6. Step 6: Final answer
    x = 31,443.45

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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.