Home / 56,940.08-85,401.36-18,990.02

Finding the Fourth Proportional to 56,940.08, 85,401.36 and 18,990.02

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Solution

The fourth proportional to 56,940.08, 85,401.36 and 18,990.02 is: 28,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,940.08 : 85,401.36 = 18,990.02 : x
  2. Step 2: Convert to fraction form
    56,940.08/85,401.36 = 18,990.02/x
  3. Step 3: Cross multiply
    56,940.08x = 85,401.36 × 18,990.02
  4. Step 4: Simplify right side
    56,940.08x = 1,621,773,071.81
  5. Step 5: Solve for x
    x = 1,621,773,071.81/56,940.08
  6. Step 6: Final answer
    x = 28,482.10

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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.