Home / 102,551.60-141,521.24-56,611.28

Finding the Fourth Proportional to 102,551.60, 141,521.24 and 56,611.28

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Solution

The fourth proportional to 102,551.60, 141,521.24 and 56,611.28 is: 78,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,551.60 : 141,521.24 = 56,611.28 : x
  2. Step 2: Convert to fraction form
    102,551.60/141,521.24 = 56,611.28/x
  3. Step 3: Cross multiply
    102,551.60x = 141,521.24 × 56,611.28
  4. Step 4: Simplify right side
    102,551.60x = 8,011,698,543.59
  5. Step 5: Solve for x
    x = 8,011,698,543.59/102,551.60
  6. Step 6: Final answer
    x = 78,123.58

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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.