Home / 98,745.42-136,265.31-56,317.62

Finding the Fourth Proportional to 98,745.42, 136,265.31 and 56,317.62

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Solution

The fourth proportional to 98,745.42, 136,265.31 and 56,317.62 is: 77,716.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,745.42 : 136,265.31 = 56,317.62 : x
  2. Step 2: Convert to fraction form
    98,745.42/136,265.31 = 56,317.62/x
  3. Step 3: Cross multiply
    98,745.42x = 136,265.31 × 56,317.62
  4. Step 4: Simplify right side
    98,745.42x = 7,674,137,947.76
  5. Step 5: Solve for x
    x = 7,674,137,947.76/98,745.42
  6. Step 6: Final answer
    x = 77,716.39

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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.