Home / 69,887.16-96,420.30-39,670.20

Finding the Fourth Proportional to 69,887.16, 96,420.30 and 39,670.20

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Solution

The fourth proportional to 69,887.16, 96,420.30 and 39,670.20 is: 54,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,887.16 : 96,420.30 = 39,670.20 : x
  2. Step 2: Convert to fraction form
    69,887.16/96,420.30 = 39,670.20/x
  3. Step 3: Cross multiply
    69,887.16x = 96,420.30 × 39,670.20
  4. Step 4: Simplify right side
    69,887.16x = 3,825,012,585.06
  5. Step 5: Solve for x
    x = 3,825,012,585.06/69,887.16
  6. Step 6: Final answer
    x = 54,731.26

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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.