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Finding the Fourth Proportional to 81,342.80, 112,264.84 and 46,880.88

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Solution

The fourth proportional to 81,342.80, 112,264.84 and 46,880.88 is: 64,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,342.80 : 112,264.84 = 46,880.88 : x
  2. Step 2: Convert to fraction form
    81,342.80/112,264.84 = 46,880.88/x
  3. Step 3: Cross multiply
    81,342.80x = 112,264.84 × 46,880.88
  4. Step 4: Simplify right side
    81,342.80x = 5,263,074,492.26
  5. Step 5: Solve for x
    x = 5,263,074,492.26/81,342.80
  6. Step 6: Final answer
    x = 64,702.40

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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.