Home / 99,303.70-137,041.76-53,984.72

Finding the Fourth Proportional to 99,303.70, 137,041.76 and 53,984.72

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Solution

The fourth proportional to 99,303.70, 137,041.76 and 53,984.72 is: 74,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,303.70 : 137,041.76 = 53,984.72 : x
  2. Step 2: Convert to fraction form
    99,303.70/137,041.76 = 53,984.72/x
  3. Step 3: Cross multiply
    99,303.70x = 137,041.76 × 53,984.72
  4. Step 4: Simplify right side
    99,303.70x = 7,398,161,041.91
  5. Step 5: Solve for x
    x = 7,398,161,041.91/99,303.70
  6. Step 6: Final answer
    x = 74,500.36

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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.