Home / 56,161.50-77,439.69-45,920.58

Finding the Fourth Proportional to 56,161.50, 77,439.69 and 45,920.58

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Solution

The fourth proportional to 56,161.50, 77,439.69 and 45,920.58 is: 63,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,161.50 : 77,439.69 = 45,920.58 : x
  2. Step 2: Convert to fraction form
    56,161.50/77,439.69 = 45,920.58/x
  3. Step 3: Cross multiply
    56,161.50x = 77,439.69 × 45,920.58
  4. Step 4: Simplify right side
    56,161.50x = 3,556,075,479.82
  5. Step 5: Solve for x
    x = 3,556,075,479.82/56,161.50
  6. Step 6: Final answer
    x = 63,318.74

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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.