Home / 56,919.99-78,549.17-31,426.41

Finding the Fourth Proportional to 56,919.99, 78,549.17 and 31,426.41

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Solution

The fourth proportional to 56,919.99, 78,549.17 and 31,426.41 is: 43,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.99 : 78,549.17 = 31,426.41 : x
  2. Step 2: Convert to fraction form
    56,919.99/78,549.17 = 31,426.41/x
  3. Step 3: Cross multiply
    56,919.99x = 78,549.17 × 31,426.41
  4. Step 4: Simplify right side
    56,919.99x = 2,468,518,264.45
  5. Step 5: Solve for x
    x = 2,468,518,264.45/56,919.99
  6. Step 6: Final answer
    x = 43,368.21

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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.