Home / 45,586.08-68,389.20-14,421.60

Finding the Fourth Proportional to 45,586.08, 68,389.20 and 14,421.60

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Solution

The fourth proportional to 45,586.08, 68,389.20 and 14,421.60 is: 21,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,586.08 : 68,389.20 = 14,421.60 : x
  2. Step 2: Convert to fraction form
    45,586.08/68,389.20 = 14,421.60/x
  3. Step 3: Cross multiply
    45,586.08x = 68,389.20 × 14,421.60
  4. Step 4: Simplify right side
    45,586.08x = 986,281,686.72
  5. Step 5: Solve for x
    x = 986,281,686.72/45,586.08
  6. Step 6: Final answer
    x = 21,635.59

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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.