Home / 85,946.58-128,926.08-35,976.42

Finding the Fourth Proportional to 85,946.58, 128,926.08 and 35,976.42

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Solution

The fourth proportional to 85,946.58, 128,926.08 and 35,976.42 is: 53,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.58 : 128,926.08 = 35,976.42 : x
  2. Step 2: Convert to fraction form
    85,946.58/128,926.08 = 35,976.42/x
  3. Step 3: Cross multiply
    85,946.58x = 128,926.08 × 35,976.42
  4. Step 4: Simplify right side
    85,946.58x = 4,638,298,803.03
  5. Step 5: Solve for x
    x = 4,638,298,803.03/85,946.58
  6. Step 6: Final answer
    x = 53,967.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.