Home / 53,790.63-74,231.06-31,434.63

Finding the Fourth Proportional to 53,790.63, 74,231.06 and 31,434.63

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Solution

The fourth proportional to 53,790.63, 74,231.06 and 31,434.63 is: 43,379.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,790.63 : 74,231.06 = 31,434.63 : x
  2. Step 2: Convert to fraction form
    53,790.63/74,231.06 = 31,434.63/x
  3. Step 3: Cross multiply
    53,790.63x = 74,231.06 × 31,434.63
  4. Step 4: Simplify right side
    53,790.63x = 2,333,425,905.61
  5. Step 5: Solve for x
    x = 2,333,425,905.61/53,790.63
  6. Step 6: Final answer
    x = 43,379.78

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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.