Home / 53,880.13-74,349.54-31,219.99

Finding the Fourth Proportional to 53,880.13, 74,349.54 and 31,219.99

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Solution

The fourth proportional to 53,880.13, 74,349.54 and 31,219.99 is: 43,080.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,880.13 : 74,349.54 = 31,219.99 : x
  2. Step 2: Convert to fraction form
    53,880.13/74,349.54 = 31,219.99/x
  3. Step 3: Cross multiply
    53,880.13x = 74,349.54 × 31,219.99
  4. Step 4: Simplify right side
    53,880.13x = 2,321,191,895.30
  5. Step 5: Solve for x
    x = 2,321,191,895.30/53,880.13
  6. Step 6: Final answer
    x = 43,080.67

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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.