Home / 55,886.40-77,123.76-30,736

Finding the Fourth Proportional to 55,886.40, 77,123.76 and 30,736

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Solution

The fourth proportional to 55,886.40, 77,123.76 and 30,736 is: 42,415.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,886.40 : 77,123.76 = 30,736 : x
  2. Step 2: Convert to fraction form
    55,886.40/77,123.76 = 30,736/x
  3. Step 3: Cross multiply
    55,886.40x = 77,123.76 × 30,736
  4. Step 4: Simplify right side
    55,886.40x = 2,370,475,887.36
  5. Step 5: Solve for x
    x = 2,370,475,887.36/55,886.40
  6. Step 6: Final answer
    x = 42,415.97

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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.