Home / 56,518.75-77,999.52-31,368.25

Finding the Fourth Proportional to 56,518.75, 77,999.52 and 31,368.25

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Solution

The fourth proportional to 56,518.75, 77,999.52 and 31,368.25 is: 43,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,518.75 : 77,999.52 = 31,368.25 : x
  2. Step 2: Convert to fraction form
    56,518.75/77,999.52 = 31,368.25/x
  3. Step 3: Cross multiply
    56,518.75x = 77,999.52 × 31,368.25
  4. Step 4: Simplify right side
    56,518.75x = 2,446,708,443.24
  5. Step 5: Solve for x
    x = 2,446,708,443.24/56,518.75
  6. Step 6: Final answer
    x = 43,290.21

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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.