Home / 64,631.63-96,948.66-20,257.40

Finding the Fourth Proportional to 64,631.63, 96,948.66 and 20,257.40

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Solution

The fourth proportional to 64,631.63, 96,948.66 and 20,257.40 is: 30,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,631.63 : 96,948.66 = 20,257.40 : x
  2. Step 2: Convert to fraction form
    64,631.63/96,948.66 = 20,257.40/x
  3. Step 3: Cross multiply
    64,631.63x = 96,948.66 × 20,257.40
  4. Step 4: Simplify right side
    64,631.63x = 1,963,927,785.08
  5. Step 5: Solve for x
    x = 1,963,927,785.08/64,631.63
  6. Step 6: Final answer
    x = 30,386.48

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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.