Home / 276,909.39-415,364.02-66,547.32

Finding the Fourth Proportional to 276,909.39, 415,364.02 and 66,547.32

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Solution

The fourth proportional to 276,909.39, 415,364.02 and 66,547.32 is: 99,820.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,909.39 : 415,364.02 = 66,547.32 : x
  2. Step 2: Convert to fraction form
    276,909.39/415,364.02 = 66,547.32/x
  3. Step 3: Cross multiply
    276,909.39x = 415,364.02 × 66,547.32
  4. Step 4: Simplify right side
    276,909.39x = 27,641,362,355.43
  5. Step 5: Solve for x
    x = 27,641,362,355.43/276,909.39
  6. Step 6: Final answer
    x = 99,820.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.