Home / 66,309.38-91,518.81-42,435.24

Finding the Fourth Proportional to 66,309.38, 91,518.81 and 42,435.24

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Solution

The fourth proportional to 66,309.38, 91,518.81 and 42,435.24 is: 58,568.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309.38 : 91,518.81 = 42,435.24 : x
  2. Step 2: Convert to fraction form
    66,309.38/91,518.81 = 42,435.24/x
  3. Step 3: Cross multiply
    66,309.38x = 91,518.81 × 42,435.24
  4. Step 4: Simplify right side
    66,309.38x = 3,883,622,666.86
  5. Step 5: Solve for x
    x = 3,883,622,666.86/66,309.38
  6. Step 6: Final answer
    x = 58,568.22

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1.5x scale

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.