Home / 68,315.40-94,312.38-47,208.12

Finding the Fourth Proportional to 68,315.40, 94,312.38 and 47,208.12

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Solution

The fourth proportional to 68,315.40, 94,312.38 and 47,208.12 is: 65,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,315.40 : 94,312.38 = 47,208.12 : x
  2. Step 2: Convert to fraction form
    68,315.40/94,312.38 = 47,208.12/x
  3. Step 3: Cross multiply
    68,315.40x = 94,312.38 × 47,208.12
  4. Step 4: Simplify right side
    68,315.40x = 4,452,310,152.53
  5. Step 5: Solve for x
    x = 4,452,310,152.53/68,315.40
  6. Step 6: Final answer
    x = 65,172.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.