Home / 70,738.51-97,619.16-38,909.56

Finding the Fourth Proportional to 70,738.51, 97,619.16 and 38,909.56

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Solution

The fourth proportional to 70,738.51, 97,619.16 and 38,909.56 is: 53,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,738.51 : 97,619.16 = 38,909.56 : x
  2. Step 2: Convert to fraction form
    70,738.51/97,619.16 = 38,909.56/x
  3. Step 3: Cross multiply
    70,738.51x = 97,619.16 × 38,909.56
  4. Step 4: Simplify right side
    70,738.51x = 3,798,318,563.17
  5. Step 5: Solve for x
    x = 3,798,318,563.17/70,738.51
  6. Step 6: Final answer
    x = 53,695.20

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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.