Home / 85,449.84-127,886.40-60,984.72

Finding the Fourth Proportional to 85,449.84, 127,886.40 and 60,984.72

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Solution

The fourth proportional to 85,449.84, 127,886.40 and 60,984.72 is: 91,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,449.84 : 127,886.40 = 60,984.72 : x
  2. Step 2: Convert to fraction form
    85,449.84/127,886.40 = 60,984.72/x
  3. Step 3: Cross multiply
    85,449.84x = 127,886.40 × 60,984.72
  4. Step 4: Simplify right side
    85,449.84x = 7,799,116,295.81
  5. Step 5: Solve for x
    x = 7,799,116,295.81/85,449.84
  6. Step 6: Final answer
    x = 91,271.28

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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.