Home / 53,587.80-80,381.70-52,666.20

Finding the Fourth Proportional to 53,587.80, 80,381.70 and 52,666.20

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Solution

The fourth proportional to 53,587.80, 80,381.70 and 52,666.20 is: 78,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,587.80 : 80,381.70 = 52,666.20 : x
  2. Step 2: Convert to fraction form
    53,587.80/80,381.70 = 52,666.20/x
  3. Step 3: Cross multiply
    53,587.80x = 80,381.70 × 52,666.20
  4. Step 4: Simplify right side
    53,587.80x = 4,233,398,688.54
  5. Step 5: Solve for x
    x = 4,233,398,688.54/53,587.80
  6. Step 6: Final answer
    x = 78,999.30

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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.