Home / 66,606.36-99,929.52-28,156.08

Finding the Fourth Proportional to 66,606.36, 99,929.52 and 28,156.08

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Solution

The fourth proportional to 66,606.36, 99,929.52 and 28,156.08 is: 42,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,606.36 : 99,929.52 = 28,156.08 : x
  2. Step 2: Convert to fraction form
    66,606.36/99,929.52 = 28,156.08/x
  3. Step 3: Cross multiply
    66,606.36x = 99,929.52 × 28,156.08
  4. Step 4: Simplify right side
    66,606.36x = 2,813,623,559.48
  5. Step 5: Solve for x
    x = 2,813,623,559.48/66,606.36
  6. Step 6: Final answer
    x = 42,242.57

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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.