Home / 78,946.04-108,953.10-43,141.48

Finding the Fourth Proportional to 78,946.04, 108,953.10 and 43,141.48

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Solution

The fourth proportional to 78,946.04, 108,953.10 and 43,141.48 is: 59,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,946.04 : 108,953.10 = 43,141.48 : x
  2. Step 2: Convert to fraction form
    78,946.04/108,953.10 = 43,141.48/x
  3. Step 3: Cross multiply
    78,946.04x = 108,953.10 × 43,141.48
  4. Step 4: Simplify right side
    78,946.04x = 4,700,397,984.59
  5. Step 5: Solve for x
    x = 4,700,397,984.59/78,946.04
  6. Step 6: Final answer
    x = 59,539.38

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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.