Home / 64,774.40-97,152.37-20,400.00

Finding the Fourth Proportional to 64,774.40, 97,152.37 and 20,400.00

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Solution

The fourth proportional to 64,774.40, 97,152.37 and 20,400.00 is: 30,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,774.40 : 97,152.37 = 20,400.00 : x
  2. Step 2: Convert to fraction form
    64,774.40/97,152.37 = 20,400.00/x
  3. Step 3: Cross multiply
    64,774.40x = 97,152.37 × 20,400.00
  4. Step 4: Simplify right side
    64,774.40x = 1,981,907,862.24
  5. Step 5: Solve for x
    x = 1,981,907,862.24/64,774.40
  6. Step 6: Final answer
    x = 30,597.09

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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.