Home / 54,307.75-74,938.62-30,430.99

Finding the Fourth Proportional to 54,307.75, 74,938.62 and 30,430.99

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Solution

The fourth proportional to 54,307.75, 74,938.62 and 30,430.99 is: 41,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,307.75 : 74,938.62 = 30,430.99 : x
  2. Step 2: Convert to fraction form
    54,307.75/74,938.62 = 30,430.99/x
  3. Step 3: Cross multiply
    54,307.75x = 74,938.62 × 30,430.99
  4. Step 4: Simplify right side
    54,307.75x = 2,280,456,395.83
  5. Step 5: Solve for x
    x = 2,280,456,395.83/54,307.75
  6. Step 6: Final answer
    x = 41,991.36

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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.