Home / 74,106.12-102,276.18-42,267.72

Finding the Fourth Proportional to 74,106.12, 102,276.18 and 42,267.72

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Solution

The fourth proportional to 74,106.12, 102,276.18 and 42,267.72 is: 58,335.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,106.12 : 102,276.18 = 42,267.72 : x
  2. Step 2: Convert to fraction form
    74,106.12/102,276.18 = 42,267.72/x
  3. Step 3: Cross multiply
    74,106.12x = 102,276.18 × 42,267.72
  4. Step 4: Simplify right side
    74,106.12x = 4,322,980,938.91
  5. Step 5: Solve for x
    x = 4,322,980,938.91/74,106.12
  6. Step 6: Final answer
    x = 58,335.01

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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.