Home / 84,307.42-116,398.48-54,105.76

Finding the Fourth Proportional to 84,307.42, 116,398.48 and 54,105.76

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Solution

The fourth proportional to 84,307.42, 116,398.48 and 54,105.76 is: 74,700.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,307.42 : 116,398.48 = 54,105.76 : x
  2. Step 2: Convert to fraction form
    84,307.42/116,398.48 = 54,105.76/x
  3. Step 3: Cross multiply
    84,307.42x = 116,398.48 × 54,105.76
  4. Step 4: Simplify right side
    84,307.42x = 6,297,827,952.72
  5. Step 5: Solve for x
    x = 6,297,827,952.72/84,307.42
  6. Step 6: Final answer
    x = 74,700.76

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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.