Home / 74,318.49-102,559.59-42,488.08

Finding the Fourth Proportional to 74,318.49, 102,559.59 and 42,488.08

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Solution

The fourth proportional to 74,318.49, 102,559.59 and 42,488.08 is: 58,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,318.49 : 102,559.59 = 42,488.08 : x
  2. Step 2: Convert to fraction form
    74,318.49/102,559.59 = 42,488.08/x
  3. Step 3: Cross multiply
    74,318.49x = 102,559.59 × 42,488.08
  4. Step 4: Simplify right side
    74,318.49x = 4,357,559,808.29
  5. Step 5: Solve for x
    x = 4,357,559,808.29/74,318.49
  6. Step 6: Final answer
    x = 58,633.59

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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.