Home / 48,291.40-72,437.10-42,454.60

Finding the Fourth Proportional to 48,291.40, 72,437.10 and 42,454.60

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Solution

The fourth proportional to 48,291.40, 72,437.10 and 42,454.60 is: 63,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,291.40 : 72,437.10 = 42,454.60 : x
  2. Step 2: Convert to fraction form
    48,291.40/72,437.10 = 42,454.60/x
  3. Step 3: Cross multiply
    48,291.40x = 72,437.10 × 42,454.60
  4. Step 4: Simplify right side
    48,291.40x = 3,075,288,105.66
  5. Step 5: Solve for x
    x = 3,075,288,105.66/48,291.40
  6. Step 6: Final answer
    x = 63,681.90

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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.