Home / 79,052.40-118,598.85-45,712.80

Finding the Fourth Proportional to 79,052.40, 118,598.85 and 45,712.80

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Solution

The fourth proportional to 79,052.40, 118,598.85 and 45,712.80 is: 68,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,052.40 : 118,598.85 = 45,712.80 : x
  2. Step 2: Convert to fraction form
    79,052.40/118,598.85 = 45,712.80/x
  3. Step 3: Cross multiply
    79,052.40x = 118,598.85 × 45,712.80
  4. Step 4: Simplify right side
    79,052.40x = 5,421,485,510.28
  5. Step 5: Solve for x
    x = 5,421,485,510.28/79,052.40
  6. Step 6: Final answer
    x = 68,580.91

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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.