Home / 90,135.51-124,397.82-52,409.76

Finding the Fourth Proportional to 90,135.51, 124,397.82 and 52,409.76

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Solution

The fourth proportional to 90,135.51, 124,397.82 and 52,409.76 is: 72,331.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,135.51 : 124,397.82 = 52,409.76 : x
  2. Step 2: Convert to fraction form
    90,135.51/124,397.82 = 52,409.76/x
  3. Step 3: Cross multiply
    90,135.51x = 124,397.82 × 52,409.76
  4. Step 4: Simplify right side
    90,135.51x = 6,519,659,890.72
  5. Step 5: Solve for x
    x = 6,519,659,890.72/90,135.51
  6. Step 6: Final answer
    x = 72,331.76

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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.