Home / 70,775.10-97,670.61-38,945.34

Finding the Fourth Proportional to 70,775.10, 97,670.61 and 38,945.34

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Solution

The fourth proportional to 70,775.10, 97,670.61 and 38,945.34 is: 53,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,775.10 : 97,670.61 = 38,945.34 : x
  2. Step 2: Convert to fraction form
    70,775.10/97,670.61 = 38,945.34/x
  3. Step 3: Cross multiply
    70,775.10x = 97,670.61 × 38,945.34
  4. Step 4: Simplify right side
    70,775.10x = 3,803,815,114.46
  5. Step 5: Solve for x
    x = 3,803,815,114.46/70,775.10
  6. Step 6: Final answer
    x = 53,745.10

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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.