Home / 45,807.89-68,718.36-14,220.68

Finding the Fourth Proportional to 45,807.89, 68,718.36 and 14,220.68

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Solution

The fourth proportional to 45,807.89, 68,718.36 and 14,220.68 is: 21,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,807.89 : 68,718.36 = 14,220.68 : x
  2. Step 2: Convert to fraction form
    45,807.89/68,718.36 = 14,220.68/x
  3. Step 3: Cross multiply
    45,807.89x = 68,718.36 × 14,220.68
  4. Step 4: Simplify right side
    45,807.89x = 977,221,807.68
  5. Step 5: Solve for x
    x = 977,221,807.68/45,807.89
  6. Step 6: Final answer
    x = 21,333.05

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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.