Home / 98,212.40-135,533.13-53,500.40

Finding the Fourth Proportional to 98,212.40, 135,533.13 and 53,500.40

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Solution

The fourth proportional to 98,212.40, 135,533.13 and 53,500.40 is: 73,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,212.40 : 135,533.13 = 53,500.40 : x
  2. Step 2: Convert to fraction form
    98,212.40/135,533.13 = 53,500.40/x
  3. Step 3: Cross multiply
    98,212.40x = 135,533.13 × 53,500.40
  4. Step 4: Simplify right side
    98,212.40x = 7,251,075,990.59
  5. Step 5: Solve for x
    x = 7,251,075,990.59/98,212.40
  6. Step 6: Final answer
    x = 73,830.56

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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.