Home / 56,602.18-78,107.20-31,107.99

Finding the Fourth Proportional to 56,602.18, 78,107.20 and 31,107.99

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Solution

The fourth proportional to 56,602.18, 78,107.20 and 31,107.99 is: 42,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,602.18 : 78,107.20 = 31,107.99 : x
  2. Step 2: Convert to fraction form
    56,602.18/78,107.20 = 31,107.99/x
  3. Step 3: Cross multiply
    56,602.18x = 78,107.20 × 31,107.99
  4. Step 4: Simplify right side
    56,602.18x = 2,429,757,996.53
  5. Step 5: Solve for x
    x = 2,429,757,996.53/56,602.18
  6. Step 6: Final answer
    x = 42,926.93

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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.