Home / 90,987.66-136,389.15-34,813.35

Finding the Fourth Proportional to 90,987.66, 136,389.15 and 34,813.35

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Solution

The fourth proportional to 90,987.66, 136,389.15 and 34,813.35 is: 52,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,987.66 : 136,389.15 = 34,813.35 : x
  2. Step 2: Convert to fraction form
    90,987.66/136,389.15 = 34,813.35/x
  3. Step 3: Cross multiply
    90,987.66x = 136,389.15 × 34,813.35
  4. Step 4: Simplify right side
    90,987.66x = 4,748,163,215.15
  5. Step 5: Solve for x
    x = 4,748,163,215.15/90,987.66
  6. Step 6: Final answer
    x = 52,184.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.