Home / 56,560.68-77,985.18-48,890.12

Finding the Fourth Proportional to 56,560.68, 77,985.18 and 48,890.12

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Solution

The fourth proportional to 56,560.68, 77,985.18 and 48,890.12 is: 67,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,560.68 : 77,985.18 = 48,890.12 : x
  2. Step 2: Convert to fraction form
    56,560.68/77,985.18 = 48,890.12/x
  3. Step 3: Cross multiply
    56,560.68x = 77,985.18 × 48,890.12
  4. Step 4: Simplify right side
    56,560.68x = 3,812,704,418.50
  5. Step 5: Solve for x
    x = 3,812,704,418.50/56,560.68
  6. Step 6: Final answer
    x = 67,409.10

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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.