Home / 85,946.76-128,971.96-36,698.76

Finding the Fourth Proportional to 85,946.76, 128,971.96 and 36,698.76

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Solution

The fourth proportional to 85,946.76, 128,971.96 and 36,698.76 is: 55,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.76 : 128,971.96 = 36,698.76 : x
  2. Step 2: Convert to fraction form
    85,946.76/128,971.96 = 36,698.76/x
  3. Step 3: Cross multiply
    85,946.76x = 128,971.96 × 36,698.76
  4. Step 4: Simplify right side
    85,946.76x = 4,733,111,006.77
  5. Step 5: Solve for x
    x = 4,733,111,006.77/85,946.76
  6. Step 6: Final answer
    x = 55,070.27

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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.