Home / 98,421.37-147,410.10-45,719.95

Finding the Fourth Proportional to 98,421.37, 147,410.10 and 45,719.95

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Solution

The fourth proportional to 98,421.37, 147,410.10 and 45,719.95 is: 68,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,421.37 : 147,410.10 = 45,719.95 : x
  2. Step 2: Convert to fraction form
    98,421.37/147,410.10 = 45,719.95/x
  3. Step 3: Cross multiply
    98,421.37x = 147,410.10 × 45,719.95
  4. Step 4: Simplify right side
    98,421.37x = 6,739,582,401.50
  5. Step 5: Solve for x
    x = 6,739,582,401.50/98,421.37
  6. Step 6: Final answer
    x = 68,476.82

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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.