Home / 42,751.12-64,418.50-35,130.64

Finding the Fourth Proportional to 42,751.12, 64,418.50 and 35,130.64

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Solution

The fourth proportional to 42,751.12, 64,418.50 and 35,130.64 is: 52,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,751.12 : 64,418.50 = 35,130.64 : x
  2. Step 2: Convert to fraction form
    42,751.12/64,418.50 = 35,130.64/x
  3. Step 3: Cross multiply
    42,751.12x = 64,418.50 × 35,130.64
  4. Step 4: Simplify right side
    42,751.12x = 2,263,063,132.84
  5. Step 5: Solve for x
    x = 2,263,063,132.84/42,751.12
  6. Step 6: Final answer
    x = 52,935.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.