Home / 56,178.09-84,245.67-18,730.98

Finding the Fourth Proportional to 56,178.09, 84,245.67 and 18,730.98

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Solution

The fourth proportional to 56,178.09, 84,245.67 and 18,730.98 is: 28,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,178.09 : 84,245.67 = 18,730.98 : x
  2. Step 2: Convert to fraction form
    56,178.09/84,245.67 = 18,730.98/x
  3. Step 3: Cross multiply
    56,178.09x = 84,245.67 × 18,730.98
  4. Step 4: Simplify right side
    56,178.09x = 1,578,003,959.86
  5. Step 5: Solve for x
    x = 1,578,003,959.86/56,178.09
  6. Step 6: Final answer
    x = 28,089.31

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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.