Home / 77,660.85-107,208.08-58,548.40

Finding the Fourth Proportional to 77,660.85, 107,208.08 and 58,548.40

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Solution

The fourth proportional to 77,660.85, 107,208.08 and 58,548.40 is: 80,824.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,660.85 : 107,208.08 = 58,548.40 : x
  2. Step 2: Convert to fraction form
    77,660.85/107,208.08 = 58,548.40/x
  3. Step 3: Cross multiply
    77,660.85x = 107,208.08 × 58,548.40
  4. Step 4: Simplify right side
    77,660.85x = 6,276,861,551.07
  5. Step 5: Solve for x
    x = 6,276,861,551.07/77,660.85
  6. Step 6: Final answer
    x = 80,824.01

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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.