Home / 76,946.04-106,172.76-51,411.45

Finding the Fourth Proportional to 76,946.04, 106,172.76 and 51,411.45

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Solution

The fourth proportional to 76,946.04, 106,172.76 and 51,411.45 is: 70,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,946.04 : 106,172.76 = 51,411.45 : x
  2. Step 2: Convert to fraction form
    76,946.04/106,172.76 = 51,411.45/x
  3. Step 3: Cross multiply
    76,946.04x = 106,172.76 × 51,411.45
  4. Step 4: Simplify right side
    76,946.04x = 5,458,495,542.10
  5. Step 5: Solve for x
    x = 5,458,495,542.10/76,946.04
  6. Step 6: Final answer
    x = 70,939.27

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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.