Home / 85,636.34-128,288.28-63,106.13

Finding the Fourth Proportional to 85,636.34, 128,288.28 and 63,106.13

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Solution

The fourth proportional to 85,636.34, 128,288.28 and 63,106.13 is: 94,536.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,636.34 : 128,288.28 = 63,106.13 : x
  2. Step 2: Convert to fraction form
    85,636.34/128,288.28 = 63,106.13/x
  3. Step 3: Cross multiply
    85,636.34x = 128,288.28 × 63,106.13
  4. Step 4: Simplify right side
    85,636.34x = 8,095,776,233.72
  5. Step 5: Solve for x
    x = 8,095,776,233.72/85,636.34
  6. Step 6: Final answer
    x = 94,536.69

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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.