Home / 99,312.14-137,051.34-53,990.48

Finding the Fourth Proportional to 99,312.14, 137,051.34 and 53,990.48

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Solution

The fourth proportional to 99,312.14, 137,051.34 and 53,990.48 is: 74,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,312.14 : 137,051.34 = 53,990.48 : x
  2. Step 2: Convert to fraction form
    99,312.14/137,051.34 = 53,990.48/x
  3. Step 3: Cross multiply
    99,312.14x = 137,051.34 × 53,990.48
  4. Step 4: Simplify right side
    99,312.14x = 7,399,467,631.24
  5. Step 5: Solve for x
    x = 7,399,467,631.24/99,312.14
  6. Step 6: Final answer
    x = 74,507.18

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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.