Home / 56,909.63-78,543.20-31,760.75

Finding the Fourth Proportional to 56,909.63, 78,543.20 and 31,760.75

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Solution

The fourth proportional to 56,909.63, 78,543.20 and 31,760.75 is: 43,834.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,909.63 : 78,543.20 = 31,760.75 : x
  2. Step 2: Convert to fraction form
    56,909.63/78,543.20 = 31,760.75/x
  3. Step 3: Cross multiply
    56,909.63x = 78,543.20 × 31,760.75
  4. Step 4: Simplify right side
    56,909.63x = 2,494,590,939.40
  5. Step 5: Solve for x
    x = 2,494,590,939.40/56,909.63
  6. Step 6: Final answer
    x = 43,834.25

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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.