Home / 55,913.60-83,846.10-18,459.20

Finding the Fourth Proportional to 55,913.60, 83,846.10 and 18,459.20

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Solution

The fourth proportional to 55,913.60, 83,846.10 and 18,459.20 is: 27,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,913.60 : 83,846.10 = 18,459.20 : x
  2. Step 2: Convert to fraction form
    55,913.60/83,846.10 = 18,459.20/x
  3. Step 3: Cross multiply
    55,913.60x = 83,846.10 × 18,459.20
  4. Step 4: Simplify right side
    55,913.60x = 1,547,731,929.12
  5. Step 5: Solve for x
    x = 1,547,731,929.12/55,913.60
  6. Step 6: Final answer
    x = 27,680.78

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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.