Home / 93,274.18-128,714.28-52,987.78

Finding the Fourth Proportional to 93,274.18, 128,714.28 and 52,987.78

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Solution

The fourth proportional to 93,274.18, 128,714.28 and 52,987.78 is: 73,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,274.18 : 128,714.28 = 52,987.78 : x
  2. Step 2: Convert to fraction form
    93,274.18/128,714.28 = 52,987.78/x
  3. Step 3: Cross multiply
    93,274.18x = 128,714.28 × 52,987.78
  4. Step 4: Simplify right side
    93,274.18x = 6,820,283,951.50
  5. Step 5: Solve for x
    x = 6,820,283,951.50/93,274.18
  6. Step 6: Final answer
    x = 73,120.81

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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.