Home / 99,012.60-136,644.63-56,570.22

Finding the Fourth Proportional to 99,012.60, 136,644.63 and 56,570.22

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Solution

The fourth proportional to 99,012.60, 136,644.63 and 56,570.22 is: 78,071.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,012.60 : 136,644.63 = 56,570.22 : x
  2. Step 2: Convert to fraction form
    99,012.60/136,644.63 = 56,570.22/x
  3. Step 3: Cross multiply
    99,012.60x = 136,644.63 × 56,570.22
  4. Step 4: Simplify right side
    99,012.60x = 7,730,016,780.92
  5. Step 5: Solve for x
    x = 7,730,016,780.92/99,012.60
  6. Step 6: Final answer
    x = 78,071.04

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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.