Home / 48,133.20-72,113.40-42,603.60

Finding the Fourth Proportional to 48,133.20, 72,113.40 and 42,603.60

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Solution

The fourth proportional to 48,133.20, 72,113.40 and 42,603.60 is: 63,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,133.20 : 72,113.40 = 42,603.60 : x
  2. Step 2: Convert to fraction form
    48,133.20/72,113.40 = 42,603.60/x
  3. Step 3: Cross multiply
    48,133.20x = 72,113.40 × 42,603.60
  4. Step 4: Simplify right side
    48,133.20x = 3,072,290,448.24
  5. Step 5: Solve for x
    x = 3,072,290,448.24/48,133.20
  6. Step 6: Final answer
    x = 63,828.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.