Home / 56,000.20-84,000.30-42,003.40

Finding the Fourth Proportional to 56,000.20, 84,000.30 and 42,003.40

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Solution

The fourth proportional to 56,000.20, 84,000.30 and 42,003.40 is: 63,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,000.20 : 84,000.30 = 42,003.40 : x
  2. Step 2: Convert to fraction form
    56,000.20/84,000.30 = 42,003.40/x
  3. Step 3: Cross multiply
    56,000.20x = 84,000.30 × 42,003.40
  4. Step 4: Simplify right side
    56,000.20x = 3,528,298,201.02
  5. Step 5: Solve for x
    x = 3,528,298,201.02/56,000.20
  6. Step 6: Final answer
    x = 63,005.10

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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.