Home / 66,362.90-91,574.16-40,865.18

Finding the Fourth Proportional to 66,362.90, 91,574.16 and 40,865.18

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Solution

The fourth proportional to 66,362.90, 91,574.16 and 40,865.18 is: 56,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,362.90 : 91,574.16 = 40,865.18 : x
  2. Step 2: Convert to fraction form
    66,362.90/91,574.16 = 40,865.18/x
  3. Step 3: Cross multiply
    66,362.90x = 91,574.16 × 40,865.18
  4. Step 4: Simplify right side
    66,362.90x = 3,742,194,531.75
  5. Step 5: Solve for x
    x = 3,742,194,531.75/66,362.90
  6. Step 6: Final answer
    x = 56,389.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.