Home / 65,653.20-98,495.46-21,280.05

Finding the Fourth Proportional to 65,653.20, 98,495.46 and 21,280.05

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Solution

The fourth proportional to 65,653.20, 98,495.46 and 21,280.05 is: 31,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,653.20 : 98,495.46 = 21,280.05 : x
  2. Step 2: Convert to fraction form
    65,653.20/98,495.46 = 21,280.05/x
  3. Step 3: Cross multiply
    65,653.20x = 98,495.46 × 21,280.05
  4. Step 4: Simplify right side
    65,653.20x = 2,095,988,313.57
  5. Step 5: Solve for x
    x = 2,095,988,313.57/65,653.20
  6. Step 6: Final answer
    x = 31,925.15

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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.