Home / 53,946.48-74,446.80-31,290.72

Finding the Fourth Proportional to 53,946.48, 74,446.80 and 31,290.72

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Solution

The fourth proportional to 53,946.48, 74,446.80 and 31,290.72 is: 43,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,946.48 : 74,446.80 = 31,290.72 : x
  2. Step 2: Convert to fraction form
    53,946.48/74,446.80 = 31,290.72/x
  3. Step 3: Cross multiply
    53,946.48x = 74,446.80 × 31,290.72
  4. Step 4: Simplify right side
    53,946.48x = 2,329,493,973.70
  5. Step 5: Solve for x
    x = 2,329,493,973.70/53,946.48
  6. Step 6: Final answer
    x = 43,181.58

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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.