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Finding the Fourth Proportional to 70,316.87, 97,038.87 and 38,485.85

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Solution

The fourth proportional to 70,316.87, 97,038.87 and 38,485.85 is: 53,111.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,316.87 : 97,038.87 = 38,485.85 : x
  2. Step 2: Convert to fraction form
    70,316.87/97,038.87 = 38,485.85/x
  3. Step 3: Cross multiply
    70,316.87x = 97,038.87 × 38,485.85
  4. Step 4: Simplify right side
    70,316.87x = 3,734,622,909.80
  5. Step 5: Solve for x
    x = 3,734,622,909.80/70,316.87
  6. Step 6: Final answer
    x = 53,111.34

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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.