Home / 55,646.07-76,795.34-31,438.64

Finding the Fourth Proportional to 55,646.07, 76,795.34 and 31,438.64

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Solution

The fourth proportional to 55,646.07, 76,795.34 and 31,438.64 is: 43,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,646.07 : 76,795.34 = 31,438.64 : x
  2. Step 2: Convert to fraction form
    55,646.07/76,795.34 = 31,438.64/x
  3. Step 3: Cross multiply
    55,646.07x = 76,795.34 × 31,438.64
  4. Step 4: Simplify right side
    55,646.07x = 2,414,340,719.61
  5. Step 5: Solve for x
    x = 2,414,340,719.61/55,646.07
  6. Step 6: Final answer
    x = 43,387.45

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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.