Home / 76,660.01-105,777.65-70,459.08

Finding the Fourth Proportional to 76,660.01, 105,777.65 and 70,459.08

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Solution

The fourth proportional to 76,660.01, 105,777.65 and 70,459.08 is: 97,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,660.01 : 105,777.65 = 70,459.08 : x
  2. Step 2: Convert to fraction form
    76,660.01/105,777.65 = 70,459.08/x
  3. Step 3: Cross multiply
    76,660.01x = 105,777.65 × 70,459.08
  4. Step 4: Simplify right side
    76,660.01x = 7,452,995,551.27
  5. Step 5: Solve for x
    x = 7,452,995,551.27/76,660.01
  6. Step 6: Final answer
    x = 97,221.43

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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.