Home / 105,576.51-145,695.62-57,831.58

Finding the Fourth Proportional to 105,576.51, 145,695.62 and 57,831.58

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Solution

The fourth proportional to 105,576.51, 145,695.62 and 57,831.58 is: 79,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,576.51 : 145,695.62 = 57,831.58 : x
  2. Step 2: Convert to fraction form
    105,576.51/145,695.62 = 57,831.58/x
  3. Step 3: Cross multiply
    105,576.51x = 145,695.62 × 57,831.58
  4. Step 4: Simplify right side
    105,576.51x = 8,425,806,886.04
  5. Step 5: Solve for x
    x = 8,425,806,886.04/105,576.51
  6. Step 6: Final answer
    x = 79,807.59

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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.