Home / 42,945.52-64,420.30-35,435.15

Finding the Fourth Proportional to 42,945.52, 64,420.30 and 35,435.15

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Solution

The fourth proportional to 42,945.52, 64,420.30 and 35,435.15 is: 53,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,945.52 : 64,420.30 = 35,435.15 : x
  2. Step 2: Convert to fraction form
    42,945.52/64,420.30 = 35,435.15/x
  3. Step 3: Cross multiply
    42,945.52x = 64,420.30 × 35,435.15
  4. Step 4: Simplify right side
    42,945.52x = 2,282,742,993.55
  5. Step 5: Solve for x
    x = 2,282,742,993.55/42,945.52
  6. Step 6: Final answer
    x = 53,154.39

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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.