Home / 85,307.07-117,771.89-56,675.82

Finding the Fourth Proportional to 85,307.07, 117,771.89 and 56,675.82

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Solution

The fourth proportional to 85,307.07, 117,771.89 and 56,675.82 is: 78,244.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,307.07 : 117,771.89 = 56,675.82 : x
  2. Step 2: Convert to fraction form
    85,307.07/117,771.89 = 56,675.82/x
  3. Step 3: Cross multiply
    85,307.07x = 117,771.89 × 56,675.82
  4. Step 4: Simplify right side
    85,307.07x = 6,674,818,155.32
  5. Step 5: Solve for x
    x = 6,674,818,155.32/85,307.07
  6. Step 6: Final answer
    x = 78,244.61

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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.