Home / 85,581.42-118,062.59-55,376.49

Finding the Fourth Proportional to 85,581.42, 118,062.59 and 55,376.49

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Solution

The fourth proportional to 85,581.42, 118,062.59 and 55,376.49 is: 76,393.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,581.42 : 118,062.59 = 55,376.49 : x
  2. Step 2: Convert to fraction form
    85,581.42/118,062.59 = 55,376.49/x
  3. Step 3: Cross multiply
    85,581.42x = 118,062.59 × 55,376.49
  4. Step 4: Simplify right side
    85,581.42x = 6,537,891,834.51
  5. Step 5: Solve for x
    x = 6,537,891,834.51/85,581.42
  6. Step 6: Final answer
    x = 76,393.82

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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.