Home / 45,389.48-68,084.19-13,799.80

Finding the Fourth Proportional to 45,389.48, 68,084.19 and 13,799.80

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Solution

The fourth proportional to 45,389.48, 68,084.19 and 13,799.80 is: 20,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,389.48 : 68,084.19 = 13,799.80 : x
  2. Step 2: Convert to fraction form
    45,389.48/68,084.19 = 13,799.80/x
  3. Step 3: Cross multiply
    45,389.48x = 68,084.19 × 13,799.80
  4. Step 4: Simplify right side
    45,389.48x = 939,547,864.74
  5. Step 5: Solve for x
    x = 939,547,864.74/45,389.48
  6. Step 6: Final answer
    x = 20,699.68

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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.