Home / 70,605.12-97,435.20-38,776.08

Finding the Fourth Proportional to 70,605.12, 97,435.20 and 38,776.08

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Solution

The fourth proportional to 70,605.12, 97,435.20 and 38,776.08 is: 53,511.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.12 : 97,435.20 = 38,776.08 : x
  2. Step 2: Convert to fraction form
    70,605.12/97,435.20 = 38,776.08/x
  3. Step 3: Cross multiply
    70,605.12x = 97,435.20 × 38,776.08
  4. Step 4: Simplify right side
    70,605.12x = 3,778,155,110.02
  5. Step 5: Solve for x
    x = 3,778,155,110.02/70,605.12
  6. Step 6: Final answer
    x = 53,511.06

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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.