Home / 57,089.90-78,785.04-31,598.36

Finding the Fourth Proportional to 57,089.90, 78,785.04 and 31,598.36

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Solution

The fourth proportional to 57,089.90, 78,785.04 and 31,598.36 is: 43,606.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.90 : 78,785.04 = 31,598.36 : x
  2. Step 2: Convert to fraction form
    57,089.90/78,785.04 = 31,598.36/x
  3. Step 3: Cross multiply
    57,089.90x = 78,785.04 × 31,598.36
  4. Step 4: Simplify right side
    57,089.90x = 2,489,478,253.50
  5. Step 5: Solve for x
    x = 2,489,478,253.50/57,089.90
  6. Step 6: Final answer
    x = 43,606.29

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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.