Home / 74,530.87-102,853.40-42,699.08

Finding the Fourth Proportional to 74,530.87, 102,853.40 and 42,699.08

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Solution

The fourth proportional to 74,530.87, 102,853.40 and 42,699.08 is: 58,925.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,530.87 : 102,853.40 = 42,699.08 : x
  2. Step 2: Convert to fraction form
    74,530.87/102,853.40 = 42,699.08/x
  3. Step 3: Cross multiply
    74,530.87x = 102,853.40 × 42,699.08
  4. Step 4: Simplify right side
    74,530.87x = 4,391,745,598.51
  5. Step 5: Solve for x
    x = 4,391,745,598.51/74,530.87
  6. Step 6: Final answer
    x = 58,925.19

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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.