Home / 70,447.06-97,216.32-38,615.86

Finding the Fourth Proportional to 70,447.06, 97,216.32 and 38,615.86

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Solution

The fourth proportional to 70,447.06, 97,216.32 and 38,615.86 is: 53,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,447.06 : 97,216.32 = 38,615.86 : x
  2. Step 2: Convert to fraction form
    70,447.06/97,216.32 = 38,615.86/x
  3. Step 3: Cross multiply
    70,447.06x = 97,216.32 × 38,615.86
  4. Step 4: Simplify right side
    70,447.06x = 3,754,091,802.84
  5. Step 5: Solve for x
    x = 3,754,091,802.84/70,447.06
  6. Step 6: Final answer
    x = 53,289.55

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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.