Home / 90,061.44-135,052.50-47,931.36

Finding the Fourth Proportional to 90,061.44, 135,052.50 and 47,931.36

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Solution

The fourth proportional to 90,061.44, 135,052.50 and 47,931.36 is: 71,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,061.44 : 135,052.50 = 47,931.36 : x
  2. Step 2: Convert to fraction form
    90,061.44/135,052.50 = 47,931.36/x
  3. Step 3: Cross multiply
    90,061.44x = 135,052.50 × 47,931.36
  4. Step 4: Simplify right side
    90,061.44x = 6,473,249,996.40
  5. Step 5: Solve for x
    x = 6,473,249,996.40/90,061.44
  6. Step 6: Final answer
    x = 71,875.93

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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.