Home / 78,011.16-116,994.40-25,425.24

Finding the Fourth Proportional to 78,011.16, 116,994.40 and 25,425.24

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Solution

The fourth proportional to 78,011.16, 116,994.40 and 25,425.24 is: 38,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,011.16 : 116,994.40 = 25,425.24 : x
  2. Step 2: Convert to fraction form
    78,011.16/116,994.40 = 25,425.24/x
  3. Step 3: Cross multiply
    78,011.16x = 116,994.40 × 25,425.24
  4. Step 4: Simplify right side
    78,011.16x = 2,974,610,698.66
  5. Step 5: Solve for x
    x = 2,974,610,698.66/78,011.16
  6. Step 6: Final answer
    x = 38,130.58

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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.