Home / 61,312.20-91,968.30-21,913.80

Finding the Fourth Proportional to 61,312.20, 91,968.30 and 21,913.80

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Solution

The fourth proportional to 61,312.20, 91,968.30 and 21,913.80 is: 32,870.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.20 : 91,968.30 = 21,913.80 : x
  2. Step 2: Convert to fraction form
    61,312.20/91,968.30 = 21,913.80/x
  3. Step 3: Cross multiply
    61,312.20x = 91,968.30 × 21,913.80
  4. Step 4: Simplify right side
    61,312.20x = 2,015,374,932.54
  5. Step 5: Solve for x
    x = 2,015,374,932.54/61,312.20
  6. Step 6: Final answer
    x = 32,870.70

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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.