Home / 57,089.81-78,782.31-31,597.22

Finding the Fourth Proportional to 57,089.81, 78,782.31 and 31,597.22

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Solution

The fourth proportional to 57,089.81, 78,782.31 and 31,597.22 is: 43,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.81 : 78,782.31 = 31,597.22 : x
  2. Step 2: Convert to fraction form
    57,089.81/78,782.31 = 31,597.22/x
  3. Step 3: Cross multiply
    57,089.81x = 78,782.31 × 31,597.22
  4. Step 4: Simplify right side
    57,089.81x = 2,489,301,587.27
  5. Step 5: Solve for x
    x = 2,489,301,587.27/57,089.81
  6. Step 6: Final answer
    x = 43,603.26

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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.