Home / 53,901.36-74,377.98-31,240.80

Finding the Fourth Proportional to 53,901.36, 74,377.98 and 31,240.80

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Solution

The fourth proportional to 53,901.36, 74,377.98 and 31,240.80 is: 43,108.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,901.36 : 74,377.98 = 31,240.80 : x
  2. Step 2: Convert to fraction form
    53,901.36/74,377.98 = 31,240.80/x
  3. Step 3: Cross multiply
    53,901.36x = 74,377.98 × 31,240.80
  4. Step 4: Simplify right side
    53,901.36x = 2,323,627,597.58
  5. Step 5: Solve for x
    x = 2,323,627,597.58/53,901.36
  6. Step 6: Final answer
    x = 43,108.89

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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.