Home / 66,256.81-99,364.16-21,875.29

Finding the Fourth Proportional to 66,256.81, 99,364.16 and 21,875.29

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Solution

The fourth proportional to 66,256.81, 99,364.16 and 21,875.29 is: 32,805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,256.81 : 99,364.16 = 21,875.29 : x
  2. Step 2: Convert to fraction form
    66,256.81/99,364.16 = 21,875.29/x
  3. Step 3: Cross multiply
    66,256.81x = 99,364.16 × 21,875.29
  4. Step 4: Simplify right side
    66,256.81x = 2,173,619,706.23
  5. Step 5: Solve for x
    x = 2,173,619,706.23/66,256.81
  6. Step 6: Final answer
    x = 32,805.98

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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.