Home / 81,582.02-112,373.43-57,667.58

Finding the Fourth Proportional to 81,582.02, 112,373.43 and 57,667.58

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Solution

The fourth proportional to 81,582.02, 112,373.43 and 57,667.58 is: 79,432.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,582.02 : 112,373.43 = 57,667.58 : x
  2. Step 2: Convert to fraction form
    81,582.02/112,373.43 = 57,667.58/x
  3. Step 3: Cross multiply
    81,582.02x = 112,373.43 × 57,667.58
  4. Step 4: Simplify right side
    81,582.02x = 6,480,303,764.40
  5. Step 5: Solve for x
    x = 6,480,303,764.40/81,582.02
  6. Step 6: Final answer
    x = 79,432.99

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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.