Home / 56,798.85-78,379.20-31,305.13

Finding the Fourth Proportional to 56,798.85, 78,379.20 and 31,305.13

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Solution

The fourth proportional to 56,798.85, 78,379.20 and 31,305.13 is: 43,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,798.85 : 78,379.20 = 31,305.13 : x
  2. Step 2: Convert to fraction form
    56,798.85/78,379.20 = 31,305.13/x
  3. Step 3: Cross multiply
    56,798.85x = 78,379.20 × 31,305.13
  4. Step 4: Simplify right side
    56,798.85x = 2,453,671,045.30
  5. Step 5: Solve for x
    x = 2,453,671,045.30/56,798.85
  6. Step 6: Final answer
    x = 43,199.31

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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.