Home / 42,756.12-64,426.05-35,135.64

Finding the Fourth Proportional to 42,756.12, 64,426.05 and 35,135.64

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Solution

The fourth proportional to 42,756.12, 64,426.05 and 35,135.64 is: 52,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,756.12 : 64,426.05 = 35,135.64 : x
  2. Step 2: Convert to fraction form
    42,756.12/64,426.05 = 35,135.64/x
  3. Step 3: Cross multiply
    42,756.12x = 64,426.05 × 35,135.64
  4. Step 4: Simplify right side
    42,756.12x = 2,263,650,499.42
  5. Step 5: Solve for x
    x = 2,263,650,499.42/42,756.12
  6. Step 6: Final answer
    x = 52,943.31

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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.