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Finding the Fourth Proportional to 56,245.80, 84,368.70 and 51,653.10

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Solution

The fourth proportional to 56,245.80, 84,368.70 and 51,653.10 is: 77,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,245.80 : 84,368.70 = 51,653.10 : x
  2. Step 2: Convert to fraction form
    56,245.80/84,368.70 = 51,653.10/x
  3. Step 3: Cross multiply
    56,245.80x = 84,368.70 × 51,653.10
  4. Step 4: Simplify right side
    56,245.80x = 4,357,904,897.97
  5. Step 5: Solve for x
    x = 4,357,904,897.97/56,245.80
  6. Step 6: Final answer
    x = 77,479.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.