Home / 76,962.44-105,971.28-65,606.48

Finding the Fourth Proportional to 76,962.44, 105,971.28 and 65,606.48

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Solution

The fourth proportional to 76,962.44, 105,971.28 and 65,606.48 is: 90,335.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,962.44 : 105,971.28 = 65,606.48 : x
  2. Step 2: Convert to fraction form
    76,962.44/105,971.28 = 65,606.48/x
  3. Step 3: Cross multiply
    76,962.44x = 105,971.28 × 65,606.48
  4. Step 4: Simplify right side
    76,962.44x = 6,952,402,661.89
  5. Step 5: Solve for x
    x = 6,952,402,661.89/76,962.44
  6. Step 6: Final answer
    x = 90,335.01

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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.