Home / 90,381.58-124,698.06-52,135.98

Finding the Fourth Proportional to 90,381.58, 124,698.06 and 52,135.98

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Solution

The fourth proportional to 90,381.58, 124,698.06 and 52,135.98 is: 71,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,381.58 : 124,698.06 = 52,135.98 : x
  2. Step 2: Convert to fraction form
    90,381.58/124,698.06 = 52,135.98/x
  3. Step 3: Cross multiply
    90,381.58x = 124,698.06 × 52,135.98
  4. Step 4: Simplify right side
    90,381.58x = 6,501,255,562.20
  5. Step 5: Solve for x
    x = 6,501,255,562.20/90,381.58
  6. Step 6: Final answer
    x = 71,931.20

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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.