Home / 53,430.30-80,145.45-52,652.70

Finding the Fourth Proportional to 53,430.30, 80,145.45 and 52,652.70

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Solution

The fourth proportional to 53,430.30, 80,145.45 and 52,652.70 is: 78,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.30 : 80,145.45 = 52,652.70 : x
  2. Step 2: Convert to fraction form
    53,430.30/80,145.45 = 52,652.70/x
  3. Step 3: Cross multiply
    53,430.30x = 80,145.45 × 52,652.70
  4. Step 4: Simplify right side
    53,430.30x = 4,219,874,335.22
  5. Step 5: Solve for x
    x = 4,219,874,335.22/53,430.30
  6. Step 6: Final answer
    x = 78,979.05

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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.