Home / 74,097.12-102,263.76-42,258.72

Finding the Fourth Proportional to 74,097.12, 102,263.76 and 42,258.72

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Solution

The fourth proportional to 74,097.12, 102,263.76 and 42,258.72 is: 58,322.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,097.12 : 102,263.76 = 42,258.72 : x
  2. Step 2: Convert to fraction form
    74,097.12/102,263.76 = 42,258.72/x
  3. Step 3: Cross multiply
    74,097.12x = 102,263.76 × 42,258.72
  4. Step 4: Simplify right side
    74,097.12x = 4,321,535,599.99
  5. Step 5: Solve for x
    x = 4,321,535,599.99/74,097.12
  6. Step 6: Final answer
    x = 58,322.59

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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.