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Finding the Fourth Proportional to 79,702.04, 109,984.50 and 45,708.91

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Solution

The fourth proportional to 79,702.04, 109,984.50 and 45,708.91 is: 63,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,702.04 : 109,984.50 = 45,708.91 : x
  2. Step 2: Convert to fraction form
    79,702.04/109,984.50 = 45,708.91/x
  3. Step 3: Cross multiply
    79,702.04x = 109,984.50 × 45,708.91
  4. Step 4: Simplify right side
    79,702.04x = 5,027,271,336.93
  5. Step 5: Solve for x
    x = 5,027,271,336.93/79,702.04
  6. Step 6: Final answer
    x = 63,075.82

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1.5x scale

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.