Home / 65,869.20-98,859.29-28,457.63

Finding the Fourth Proportional to 65,869.20, 98,859.29 and 28,457.63

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Solution

The fourth proportional to 65,869.20, 98,859.29 and 28,457.63 is: 42,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,869.20 : 98,859.29 = 28,457.63 : x
  2. Step 2: Convert to fraction form
    65,869.20/98,859.29 = 28,457.63/x
  3. Step 3: Cross multiply
    65,869.20x = 98,859.29 × 28,457.63
  4. Step 4: Simplify right side
    65,869.20x = 2,813,300,831.02
  5. Step 5: Solve for x
    x = 2,813,300,831.02/65,869.20
  6. Step 6: Final answer
    x = 42,710.41

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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.