Home / 78,244.30-117,336.97-28,312.05

Finding the Fourth Proportional to 78,244.30, 117,336.97 and 28,312.05

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Solution

The fourth proportional to 78,244.30, 117,336.97 and 28,312.05 is: 42,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,244.30 : 117,336.97 = 28,312.05 : x
  2. Step 2: Convert to fraction form
    78,244.30/117,336.97 = 28,312.05/x
  3. Step 3: Cross multiply
    78,244.30x = 117,336.97 × 28,312.05
  4. Step 4: Simplify right side
    78,244.30x = 3,322,050,161.49
  5. Step 5: Solve for x
    x = 3,322,050,161.49/78,244.30
  6. Step 6: Final answer
    x = 42,457.41

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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.