Home / 56,129.40-83,999.70-51,463.80

Finding the Fourth Proportional to 56,129.40, 83,999.70 and 51,463.80

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Solution

The fourth proportional to 56,129.40, 83,999.70 and 51,463.80 is: 77,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.40 : 83,999.70 = 51,463.80 : x
  2. Step 2: Convert to fraction form
    56,129.40/83,999.70 = 51,463.80/x
  3. Step 3: Cross multiply
    56,129.40x = 83,999.70 × 51,463.80
  4. Step 4: Simplify right side
    56,129.40x = 4,322,943,760.86
  5. Step 5: Solve for x
    x = 4,322,943,760.86/56,129.40
  6. Step 6: Final answer
    x = 77,017.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.