Home / 79,122.90-118,685.55-25,814.64

Finding the Fourth Proportional to 79,122.90, 118,685.55 and 25,814.64

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Solution

The fourth proportional to 79,122.90, 118,685.55 and 25,814.64 is: 38,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,122.90 : 118,685.55 = 25,814.64 : x
  2. Step 2: Convert to fraction form
    79,122.90/118,685.55 = 25,814.64/x
  3. Step 3: Cross multiply
    79,122.90x = 118,685.55 × 25,814.64
  4. Step 4: Simplify right side
    79,122.90x = 3,063,824,746.45
  5. Step 5: Solve for x
    x = 3,063,824,746.45/79,122.90
  6. Step 6: Final answer
    x = 38,722.35

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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.