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Finding the Fourth Proportional to 48,206.40, 72,482.40 and 40,603.20

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Solution

The fourth proportional to 48,206.40, 72,482.40 and 40,603.20 is: 61,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,206.40 : 72,482.40 = 40,603.20 : x
  2. Step 2: Convert to fraction form
    48,206.40/72,482.40 = 40,603.20/x
  3. Step 3: Cross multiply
    48,206.40x = 72,482.40 × 40,603.20
  4. Step 4: Simplify right side
    48,206.40x = 2,943,017,383.68
  5. Step 5: Solve for x
    x = 2,943,017,383.68/48,206.40
  6. Step 6: Final answer
    x = 61,050.35

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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.