Home / 99,548.76-137,353.38-56,518.68

Finding the Fourth Proportional to 99,548.76, 137,353.38 and 56,518.68

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Solution

The fourth proportional to 99,548.76, 137,353.38 and 56,518.68 is: 77,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,548.76 : 137,353.38 = 56,518.68 : x
  2. Step 2: Convert to fraction form
    99,548.76/137,353.38 = 56,518.68/x
  3. Step 3: Cross multiply
    99,548.76x = 137,353.38 × 56,518.68
  4. Step 4: Simplify right side
    99,548.76x = 7,763,031,731.14
  5. Step 5: Solve for x
    x = 7,763,031,731.14/99,548.76
  6. Step 6: Final answer
    x = 77,982.20

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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.