Home / 45,622.40-68,432.96-14,457.92

Finding the Fourth Proportional to 45,622.40, 68,432.96 and 14,457.92

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Solution

The fourth proportional to 45,622.40, 68,432.96 and 14,457.92 is: 21,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,622.40 : 68,432.96 = 14,457.92 : x
  2. Step 2: Convert to fraction form
    45,622.40/68,432.96 = 14,457.92/x
  3. Step 3: Cross multiply
    45,622.40x = 68,432.96 × 14,457.92
  4. Step 4: Simplify right side
    45,622.40x = 989,398,261.04
  5. Step 5: Solve for x
    x = 989,398,261.04/45,622.40
  6. Step 6: Final answer
    x = 21,686.68

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1.5x scale

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.