Home / 66,365.11-99,490.42-31,280.23

Finding the Fourth Proportional to 66,365.11, 99,490.42 and 31,280.23

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Solution

The fourth proportional to 66,365.11, 99,490.42 and 31,280.23 is: 46,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,365.11 : 99,490.42 = 31,280.23 : x
  2. Step 2: Convert to fraction form
    66,365.11/99,490.42 = 31,280.23/x
  3. Step 3: Cross multiply
    66,365.11x = 99,490.42 × 31,280.23
  4. Step 4: Simplify right side
    66,365.11x = 3,112,083,220.40
  5. Step 5: Solve for x
    x = 3,112,083,220.40/66,365.11
  6. Step 6: Final answer
    x = 46,893.36

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1.5x scale

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.