Home / 56,477.30-78,019.78-45,131.93

Finding the Fourth Proportional to 56,477.30, 78,019.78 and 45,131.93

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Solution

The fourth proportional to 56,477.30, 78,019.78 and 45,131.93 is: 62,346.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,477.30 : 78,019.78 = 45,131.93 : x
  2. Step 2: Convert to fraction form
    56,477.30/78,019.78 = 45,131.93/x
  3. Step 3: Cross multiply
    56,477.30x = 78,019.78 × 45,131.93
  4. Step 4: Simplify right side
    56,477.30x = 3,521,183,689.64
  5. Step 5: Solve for x
    x = 3,521,183,689.64/56,477.30
  6. Step 6: Final answer
    x = 62,346.88

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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.