Home / 77,215.84-115,598.40-47,544.64

Finding the Fourth Proportional to 77,215.84, 115,598.40 and 47,544.64

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Solution

The fourth proportional to 77,215.84, 115,598.40 and 47,544.64 is: 71,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,215.84 : 115,598.40 = 47,544.64 : x
  2. Step 2: Convert to fraction form
    77,215.84/115,598.40 = 47,544.64/x
  3. Step 3: Cross multiply
    77,215.84x = 115,598.40 × 47,544.64
  4. Step 4: Simplify right side
    77,215.84x = 5,496,084,312.58
  5. Step 5: Solve for x
    x = 5,496,084,312.58/77,215.84
  6. Step 6: Final answer
    x = 71,178.20

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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.