Home / 70,539.12-97,345.08-38,707.56

Finding the Fourth Proportional to 70,539.12, 97,345.08 and 38,707.56

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Solution

The fourth proportional to 70,539.12, 97,345.08 and 38,707.56 is: 53,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,539.12 : 97,345.08 = 38,707.56 : x
  2. Step 2: Convert to fraction form
    70,539.12/97,345.08 = 38,707.56/x
  3. Step 3: Cross multiply
    70,539.12x = 97,345.08 × 38,707.56
  4. Step 4: Simplify right side
    70,539.12x = 3,767,990,524.80
  5. Step 5: Solve for x
    x = 3,767,990,524.80/70,539.12
  6. Step 6: Final answer
    x = 53,417.03

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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.