Home / 91,030.32-136,563.96-38,439.60

Finding the Fourth Proportional to 91,030.32, 136,563.96 and 38,439.60

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Solution

The fourth proportional to 91,030.32, 136,563.96 and 38,439.60 is: 57,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,030.32 : 136,563.96 = 38,439.60 : x
  2. Step 2: Convert to fraction form
    91,030.32/136,563.96 = 38,439.60/x
  3. Step 3: Cross multiply
    91,030.32x = 136,563.96 × 38,439.60
  4. Step 4: Simplify right side
    91,030.32x = 5,249,463,996.82
  5. Step 5: Solve for x
    x = 5,249,463,996.82/91,030.32
  6. Step 6: Final answer
    x = 57,667.20

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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.