Home / 105,275.28-145,277.49-57,528.92

Finding the Fourth Proportional to 105,275.28, 145,277.49 and 57,528.92

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Solution

The fourth proportional to 105,275.28, 145,277.49 and 57,528.92 is: 79,388.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,275.28 : 145,277.49 = 57,528.92 : x
  2. Step 2: Convert to fraction form
    105,275.28/145,277.49 = 57,528.92/x
  3. Step 3: Cross multiply
    105,275.28x = 145,277.49 × 57,528.92
  4. Step 4: Simplify right side
    105,275.28x = 8,357,656,373.62
  5. Step 5: Solve for x
    x = 8,357,656,373.62/105,275.28
  6. Step 6: Final answer
    x = 79,388.59

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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.