Home / 72,260.40-99,732.96-48,428.64

Finding the Fourth Proportional to 72,260.40, 99,732.96 and 48,428.64

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Solution

The fourth proportional to 72,260.40, 99,732.96 and 48,428.64 is: 66,840.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,260.40 : 99,732.96 = 48,428.64 : x
  2. Step 2: Convert to fraction form
    72,260.40/99,732.96 = 48,428.64/x
  3. Step 3: Cross multiply
    72,260.40x = 99,732.96 × 48,428.64
  4. Step 4: Simplify right side
    72,260.40x = 4,829,931,615.97
  5. Step 5: Solve for x
    x = 4,829,931,615.97/72,260.40
  6. Step 6: Final answer
    x = 66,840.64

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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.