Home / 53,178.57-73,386.72-30,515.76

Finding the Fourth Proportional to 53,178.57, 73,386.72 and 30,515.76

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Solution

The fourth proportional to 53,178.57, 73,386.72 and 30,515.76 is: 42,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,178.57 : 73,386.72 = 30,515.76 : x
  2. Step 2: Convert to fraction form
    53,178.57/73,386.72 = 30,515.76/x
  3. Step 3: Cross multiply
    53,178.57x = 73,386.72 × 30,515.76
  4. Step 4: Simplify right side
    53,178.57x = 2,239,451,534.71
  5. Step 5: Solve for x
    x = 2,239,451,534.71/53,178.57
  6. Step 6: Final answer
    x = 42,111.92

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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.