Home / 42,905.70-64,358.55-29,783.70

Finding the Fourth Proportional to 42,905.70, 64,358.55 and 29,783.70

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Solution

The fourth proportional to 42,905.70, 64,358.55 and 29,783.70 is: 44,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,905.70 : 64,358.55 = 29,783.70 : x
  2. Step 2: Convert to fraction form
    42,905.70/64,358.55 = 29,783.70/x
  3. Step 3: Cross multiply
    42,905.70x = 64,358.55 × 29,783.70
  4. Step 4: Simplify right side
    42,905.70x = 1,916,835,745.64
  5. Step 5: Solve for x
    x = 1,916,835,745.64/42,905.70
  6. Step 6: Final answer
    x = 44,675.55

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1.5x scale

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.