Home / 68,478.21-102,541.95-47,389.05

Finding the Fourth Proportional to 68,478.21, 102,541.95 and 47,389.05

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Solution

The fourth proportional to 68,478.21, 102,541.95 and 47,389.05 is: 70,962.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,478.21 : 102,541.95 = 47,389.05 : x
  2. Step 2: Convert to fraction form
    68,478.21/102,541.95 = 47,389.05/x
  3. Step 3: Cross multiply
    68,478.21x = 102,541.95 × 47,389.05
  4. Step 4: Simplify right side
    68,478.21x = 4,859,365,595.65
  5. Step 5: Solve for x
    x = 4,859,365,595.65/68,478.21
  6. Step 6: Final answer
    x = 70,962.22

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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.