Home / 105,582.41-145,703.78-57,835.95

Finding the Fourth Proportional to 105,582.41, 145,703.78 and 57,835.95

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Solution

The fourth proportional to 105,582.41, 145,703.78 and 57,835.95 is: 79,813.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,582.41 : 145,703.78 = 57,835.95 : x
  2. Step 2: Convert to fraction form
    105,582.41/145,703.78 = 57,835.95/x
  3. Step 3: Cross multiply
    105,582.41x = 145,703.78 × 57,835.95
  4. Step 4: Simplify right side
    105,582.41x = 8,426,916,534.89
  5. Step 5: Solve for x
    x = 8,426,916,534.89/105,582.41
  6. Step 6: Final answer
    x = 79,813.64

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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.