Home / 56,219.30-77,582.70-31,068.80

Finding the Fourth Proportional to 56,219.30, 77,582.70 and 31,068.80

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Solution

The fourth proportional to 56,219.30, 77,582.70 and 31,068.80 is: 42,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,219.30 : 77,582.70 = 31,068.80 : x
  2. Step 2: Convert to fraction form
    56,219.30/77,582.70 = 31,068.80/x
  3. Step 3: Cross multiply
    56,219.30x = 77,582.70 × 31,068.80
  4. Step 4: Simplify right side
    56,219.30x = 2,410,401,389.76
  5. Step 5: Solve for x
    x = 2,410,401,389.76/56,219.30
  6. Step 6: Final answer
    x = 42,874.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.