Home / 55,021.79-75,929.46-31,148.26

Finding the Fourth Proportional to 55,021.79, 75,929.46 and 31,148.26

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Solution

The fourth proportional to 55,021.79, 75,929.46 and 31,148.26 is: 42,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,021.79 : 75,929.46 = 31,148.26 : x
  2. Step 2: Convert to fraction form
    55,021.79/75,929.46 = 31,148.26/x
  3. Step 3: Cross multiply
    55,021.79x = 75,929.46 × 31,148.26
  4. Step 4: Simplify right side
    55,021.79x = 2,365,070,561.74
  5. Step 5: Solve for x
    x = 2,365,070,561.74/55,021.79
  6. Step 6: Final answer
    x = 42,984.25

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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.