Home / 76,563.47-105,661.12-42,575.40

Finding the Fourth Proportional to 76,563.47, 105,661.12 and 42,575.40

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Solution

The fourth proportional to 76,563.47, 105,661.12 and 42,575.40 is: 58,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,563.47 : 105,661.12 = 42,575.40 : x
  2. Step 2: Convert to fraction form
    76,563.47/105,661.12 = 42,575.40/x
  3. Step 3: Cross multiply
    76,563.47x = 105,661.12 × 42,575.40
  4. Step 4: Simplify right side
    76,563.47x = 4,498,564,448.45
  5. Step 5: Solve for x
    x = 4,498,564,448.45/76,563.47
  6. Step 6: Final answer
    x = 58,756.02

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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.