Home / 57,955.20-86,820.01-42,730.04

Finding the Fourth Proportional to 57,955.20, 86,820.01 and 42,730.04

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Solution

The fourth proportional to 57,955.20, 86,820.01 and 42,730.04 is: 64,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,955.20 : 86,820.01 = 42,730.04 : x
  2. Step 2: Convert to fraction form
    57,955.20/86,820.01 = 42,730.04/x
  3. Step 3: Cross multiply
    57,955.20x = 86,820.01 × 42,730.04
  4. Step 4: Simplify right side
    57,955.20x = 3,709,821,852.35
  5. Step 5: Solve for x
    x = 3,709,821,852.35/57,955.20
  6. Step 6: Final answer
    x = 64,011.89

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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.