Home / 85,946.06-128,970.93-36,698.06

Finding the Fourth Proportional to 85,946.06, 128,970.93 and 36,698.06

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Solution

The fourth proportional to 85,946.06, 128,970.93 and 36,698.06 is: 55,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.06 : 128,970.93 = 36,698.06 : x
  2. Step 2: Convert to fraction form
    85,946.06/128,970.93 = 36,698.06/x
  3. Step 3: Cross multiply
    85,946.06x = 128,970.93 × 36,698.06
  4. Step 4: Simplify right side
    85,946.06x = 4,732,983,387.44
  5. Step 5: Solve for x
    x = 4,732,983,387.44/85,946.06
  6. Step 6: Final answer
    x = 55,069.23

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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.