Home / 66,064.81-99,100.55-18,683.31

Finding the Fourth Proportional to 66,064.81, 99,100.55 and 18,683.31

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Solution

The fourth proportional to 66,064.81, 99,100.55 and 18,683.31 is: 28,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,064.81 : 99,100.55 = 18,683.31 : x
  2. Step 2: Convert to fraction form
    66,064.81/99,100.55 = 18,683.31/x
  3. Step 3: Cross multiply
    66,064.81x = 99,100.55 × 18,683.31
  4. Step 4: Simplify right side
    66,064.81x = 1,851,525,707.90
  5. Step 5: Solve for x
    x = 1,851,525,707.90/66,064.81
  6. Step 6: Final answer
    x = 28,025.90

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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.