Home / 56,883.55-78,498.66-31,390.12

Finding the Fourth Proportional to 56,883.55, 78,498.66 and 31,390.12

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Solution

The fourth proportional to 56,883.55, 78,498.66 and 31,390.12 is: 43,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,883.55 : 78,498.66 = 31,390.12 : x
  2. Step 2: Convert to fraction form
    56,883.55/78,498.66 = 31,390.12/x
  3. Step 3: Cross multiply
    56,883.55x = 78,498.66 × 31,390.12
  4. Step 4: Simplify right side
    56,883.55x = 2,464,082,357.24
  5. Step 5: Solve for x
    x = 2,464,082,357.24/56,883.55
  6. Step 6: Final answer
    x = 43,318.01

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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.