Home / 69,828.64-96,387.20-42,972.32

Finding the Fourth Proportional to 69,828.64, 96,387.20 and 42,972.32

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Solution

The fourth proportional to 69,828.64, 96,387.20 and 42,972.32 is: 59,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,828.64 : 96,387.20 = 42,972.32 : x
  2. Step 2: Convert to fraction form
    69,828.64/96,387.20 = 42,972.32/x
  3. Step 3: Cross multiply
    69,828.64x = 96,387.20 × 42,972.32
  4. Step 4: Simplify right side
    69,828.64x = 4,141,981,602.30
  5. Step 5: Solve for x
    x = 4,141,981,602.30/69,828.64
  6. Step 6: Final answer
    x = 59,316.37

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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.