Home / 72,072.04-99,500.90-47,905.76

Finding the Fourth Proportional to 72,072.04, 99,500.90 and 47,905.76

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Solution

The fourth proportional to 72,072.04, 99,500.90 and 47,905.76 is: 66,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,072.04 : 99,500.90 = 47,905.76 : x
  2. Step 2: Convert to fraction form
    72,072.04/99,500.90 = 47,905.76/x
  3. Step 3: Cross multiply
    72,072.04x = 99,500.90 × 47,905.76
  4. Step 4: Simplify right side
    72,072.04x = 4,766,666,235.18
  5. Step 5: Solve for x
    x = 4,766,666,235.18/72,072.04
  6. Step 6: Final answer
    x = 66,137.52

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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.