Home / 72,845.40-100,554.90-56,935.02

Finding the Fourth Proportional to 72,845.40, 100,554.90 and 56,935.02

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Solution

The fourth proportional to 72,845.40, 100,554.90 and 56,935.02 is: 78,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,845.40 : 100,554.90 = 56,935.02 : x
  2. Step 2: Convert to fraction form
    72,845.40/100,554.90 = 56,935.02/x
  3. Step 3: Cross multiply
    72,845.40x = 100,554.90 × 56,935.02
  4. Step 4: Simplify right side
    72,845.40x = 5,725,095,242.60
  5. Step 5: Solve for x
    x = 5,725,095,242.60/72,845.40
  6. Step 6: Final answer
    x = 78,592.41

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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.