Home / 57,062.07-78,739.61-31,564.40

Finding the Fourth Proportional to 57,062.07, 78,739.61 and 31,564.40

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Solution

The fourth proportional to 57,062.07, 78,739.61 and 31,564.40 is: 43,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,062.07 : 78,739.61 = 31,564.40 : x
  2. Step 2: Convert to fraction form
    57,062.07/78,739.61 = 31,564.40/x
  3. Step 3: Cross multiply
    57,062.07x = 78,739.61 × 31,564.40
  4. Step 4: Simplify right side
    57,062.07x = 2,485,367,994.36
  5. Step 5: Solve for x
    x = 2,485,367,994.36/57,062.07
  6. Step 6: Final answer
    x = 43,555.52

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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.