Home / 70,720.96-97,592.40-38,889.58

Finding the Fourth Proportional to 70,720.96, 97,592.40 and 38,889.58

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Solution

The fourth proportional to 70,720.96, 97,592.40 and 38,889.58 is: 53,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,720.96 : 97,592.40 = 38,889.58 : x
  2. Step 2: Convert to fraction form
    70,720.96/97,592.40 = 38,889.58/x
  3. Step 3: Cross multiply
    70,720.96x = 97,592.40 × 38,889.58
  4. Step 4: Simplify right side
    70,720.96x = 3,795,327,447.19
  5. Step 5: Solve for x
    x = 3,795,327,447.19/70,720.96
  6. Step 6: Final answer
    x = 53,666.23

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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.