Home / 45,916.80-68,867.64-42,928.08

Finding the Fourth Proportional to 45,916.80, 68,867.64 and 42,928.08

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Solution

The fourth proportional to 45,916.80, 68,867.64 and 42,928.08 is: 64,385.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,916.80 : 68,867.64 = 42,928.08 : x
  2. Step 2: Convert to fraction form
    45,916.80/68,867.64 = 42,928.08/x
  3. Step 3: Cross multiply
    45,916.80x = 68,867.64 × 42,928.08
  4. Step 4: Simplify right side
    45,916.80x = 2,956,355,559.33
  5. Step 5: Solve for x
    x = 2,956,355,559.33/45,916.80
  6. Step 6: Final answer
    x = 64,385.05

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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.