Home / 64,904.80-96,887.70-57,031.60

Finding the Fourth Proportional to 64,904.80, 96,887.70 and 57,031.60

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Solution

The fourth proportional to 64,904.80, 96,887.70 and 57,031.60 is: 85,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,904.80 : 96,887.70 = 57,031.60 : x
  2. Step 2: Convert to fraction form
    64,904.80/96,887.70 = 57,031.60/x
  3. Step 3: Cross multiply
    64,904.80x = 96,887.70 × 57,031.60
  4. Step 4: Simplify right side
    64,904.80x = 5,525,660,551.32
  5. Step 5: Solve for x
    x = 5,525,660,551.32/64,904.80
  6. Step 6: Final answer
    x = 85,134.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.