Home / 78,392.32-117,598.20-25,820.08

Finding the Fourth Proportional to 78,392.32, 117,598.20 and 25,820.08

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Solution

The fourth proportional to 78,392.32, 117,598.20 and 25,820.08 is: 38,733.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392.32 : 117,598.20 = 25,820.08 : x
  2. Step 2: Convert to fraction form
    78,392.32/117,598.20 = 25,820.08/x
  3. Step 3: Cross multiply
    78,392.32x = 117,598.20 × 25,820.08
  4. Step 4: Simplify right side
    78,392.32x = 3,036,394,931.86
  5. Step 5: Solve for x
    x = 3,036,394,931.86/78,392.32
  6. Step 6: Final answer
    x = 38,733.32

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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.