Home / 45,160.32-67,742.63-21,806.40

Finding the Fourth Proportional to 45,160.32, 67,742.63 and 21,806.40

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Solution

The fourth proportional to 45,160.32, 67,742.63 and 21,806.40 is: 32,710.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,160.32 : 67,742.63 = 21,806.40 : x
  2. Step 2: Convert to fraction form
    45,160.32/67,742.63 = 21,806.40/x
  3. Step 3: Cross multiply
    45,160.32x = 67,742.63 × 21,806.40
  4. Step 4: Simplify right side
    45,160.32x = 1,477,222,886.83
  5. Step 5: Solve for x
    x = 1,477,222,886.83/45,160.32
  6. Step 6: Final answer
    x = 32,710.64

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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.