Home / 77,840.88-107,421.24-44,307.12

Finding the Fourth Proportional to 77,840.88, 107,421.24 and 44,307.12

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Solution

The fourth proportional to 77,840.88, 107,421.24 and 44,307.12 is: 61,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,840.88 : 107,421.24 = 44,307.12 : x
  2. Step 2: Convert to fraction form
    77,840.88/107,421.24 = 44,307.12/x
  3. Step 3: Cross multiply
    77,840.88x = 107,421.24 × 44,307.12
  4. Step 4: Simplify right side
    77,840.88x = 4,759,525,771.23
  5. Step 5: Solve for x
    x = 4,759,525,771.23/77,840.88
  6. Step 6: Final answer
    x = 61,144.30

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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.