Home / 101,829.36-140,525.28-56,507.52

Finding the Fourth Proportional to 101,829.36, 140,525.28 and 56,507.52

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Solution

The fourth proportional to 101,829.36, 140,525.28 and 56,507.52 is: 77,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,829.36 : 140,525.28 = 56,507.52 : x
  2. Step 2: Convert to fraction form
    101,829.36/140,525.28 = 56,507.52/x
  3. Step 3: Cross multiply
    101,829.36x = 140,525.28 × 56,507.52
  4. Step 4: Simplify right side
    101,829.36x = 7,940,735,070.11
  5. Step 5: Solve for x
    x = 7,940,735,070.11/101,829.36
  6. Step 6: Final answer
    x = 77,980.80

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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.