Home / 55,280.10-76,278.83-31,077.75

Finding the Fourth Proportional to 55,280.10, 76,278.83 and 31,077.75

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Solution

The fourth proportional to 55,280.10, 76,278.83 and 31,077.75 is: 42,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,280.10 : 76,278.83 = 31,077.75 : x
  2. Step 2: Convert to fraction form
    55,280.10/76,278.83 = 31,077.75/x
  3. Step 3: Cross multiply
    55,280.10x = 76,278.83 × 31,077.75
  4. Step 4: Simplify right side
    55,280.10x = 2,370,574,409.03
  5. Step 5: Solve for x
    x = 2,370,574,409.03/55,280.10
  6. Step 6: Final answer
    x = 42,882.96

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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.