Home / 56,303.72-77,698.10-31,153.22

Finding the Fourth Proportional to 56,303.72, 77,698.10 and 31,153.22

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Solution

The fourth proportional to 56,303.72, 77,698.10 and 31,153.22 is: 42,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,303.72 : 77,698.10 = 31,153.22 : x
  2. Step 2: Convert to fraction form
    56,303.72/77,698.10 = 31,153.22/x
  3. Step 3: Cross multiply
    56,303.72x = 77,698.10 × 31,153.22
  4. Step 4: Simplify right side
    56,303.72x = 2,420,545,692.27
  5. Step 5: Solve for x
    x = 2,420,545,692.27/56,303.72
  6. Step 6: Final answer
    x = 42,990.87

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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.