Home / 45,615.68-68,432.16-14,455.52

Finding the Fourth Proportional to 45,615.68, 68,432.16 and 14,455.52

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Solution

The fourth proportional to 45,615.68, 68,432.16 and 14,455.52 is: 21,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,615.68 : 68,432.16 = 14,455.52 : x
  2. Step 2: Convert to fraction form
    45,615.68/68,432.16 = 14,455.52/x
  3. Step 3: Cross multiply
    45,615.68x = 68,432.16 × 14,455.52
  4. Step 4: Simplify right side
    45,615.68x = 989,222,457.52
  5. Step 5: Solve for x
    x = 989,222,457.52/45,615.68
  6. Step 6: Final answer
    x = 21,686.02

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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.