Home / 62,012.79-85,479.39-56,864.34

Finding the Fourth Proportional to 62,012.79, 85,479.39 and 56,864.34

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Solution

The fourth proportional to 62,012.79, 85,479.39 and 56,864.34 is: 78,382.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,012.79 : 85,479.39 = 56,864.34 : x
  2. Step 2: Convert to fraction form
    62,012.79/85,479.39 = 56,864.34/x
  3. Step 3: Cross multiply
    62,012.79x = 85,479.39 × 56,864.34
  4. Step 4: Simplify right side
    62,012.79x = 4,860,729,095.95
  5. Step 5: Solve for x
    x = 4,860,729,095.95/62,012.79
  6. Step 6: Final answer
    x = 78,382.69

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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.