Home / 90,878.51-136,319.58-24,318.53

Finding the Fourth Proportional to 90,878.51, 136,319.58 and 24,318.53

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Solution

The fourth proportional to 90,878.51, 136,319.58 and 24,318.53 is: 36,478.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,878.51 : 136,319.58 = 24,318.53 : x
  2. Step 2: Convert to fraction form
    90,878.51/136,319.58 = 24,318.53/x
  3. Step 3: Cross multiply
    90,878.51x = 136,319.58 × 24,318.53
  4. Step 4: Simplify right side
    90,878.51x = 3,315,091,795.82
  5. Step 5: Solve for x
    x = 3,315,091,795.82/90,878.51
  6. Step 6: Final answer
    x = 36,478.28

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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.