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Finding the Fourth Proportional to 79,075.20, 118,468.80 and 37,430.40

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Solution

The fourth proportional to 79,075.20, 118,468.80 and 37,430.40 is: 56,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,075.20 : 118,468.80 = 37,430.40 : x
  2. Step 2: Convert to fraction form
    79,075.20/118,468.80 = 37,430.40/x
  3. Step 3: Cross multiply
    79,075.20x = 118,468.80 × 37,430.40
  4. Step 4: Simplify right side
    79,075.20x = 4,434,334,571.52
  5. Step 5: Solve for x
    x = 4,434,334,571.52/79,075.20
  6. Step 6: Final answer
    x = 56,077.44

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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.