Home / 53,981.03-74,495.30-30,112.36

Finding the Fourth Proportional to 53,981.03, 74,495.30 and 30,112.36

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Solution

The fourth proportional to 53,981.03, 74,495.30 and 30,112.36 is: 41,555.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.03 : 74,495.30 = 30,112.36 : x
  2. Step 2: Convert to fraction form
    53,981.03/74,495.30 = 30,112.36/x
  3. Step 3: Cross multiply
    53,981.03x = 74,495.30 × 30,112.36
  4. Step 4: Simplify right side
    53,981.03x = 2,243,228,955.11
  5. Step 5: Solve for x
    x = 2,243,228,955.11/53,981.03
  6. Step 6: Final answer
    x = 41,555.87

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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.