Home / 74,307.72-102,546.39-42,479.58

Finding the Fourth Proportional to 74,307.72, 102,546.39 and 42,479.58

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Solution

The fourth proportional to 74,307.72, 102,546.39 and 42,479.58 is: 58,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,307.72 : 102,546.39 = 42,479.58 : x
  2. Step 2: Convert to fraction form
    74,307.72/102,546.39 = 42,479.58/x
  3. Step 3: Cross multiply
    74,307.72x = 102,546.39 × 42,479.58
  4. Step 4: Simplify right side
    74,307.72x = 4,356,127,577.72
  5. Step 5: Solve for x
    x = 4,356,127,577.72/74,307.72
  6. Step 6: Final answer
    x = 58,622.81

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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.