Home / 65,639.40-98,340.24-30,130.36

Finding the Fourth Proportional to 65,639.40, 98,340.24 and 30,130.36

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Solution

The fourth proportional to 65,639.40, 98,340.24 and 30,130.36 is: 45,140.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,639.40 : 98,340.24 = 30,130.36 : x
  2. Step 2: Convert to fraction form
    65,639.40/98,340.24 = 30,130.36/x
  3. Step 3: Cross multiply
    65,639.40x = 98,340.24 × 30,130.36
  4. Step 4: Simplify right side
    65,639.40x = 2,963,026,833.69
  5. Step 5: Solve for x
    x = 2,963,026,833.69/65,639.40
  6. Step 6: Final answer
    x = 45,140.98

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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.