Home / 87,089.36-130,412.46-57,417.17

Finding the Fourth Proportional to 87,089.36, 130,412.46 and 57,417.17

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Solution

The fourth proportional to 87,089.36, 130,412.46 and 57,417.17 is: 85,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.36 : 130,412.46 = 57,417.17 : x
  2. Step 2: Convert to fraction form
    87,089.36/130,412.46 = 57,417.17/x
  3. Step 3: Cross multiply
    87,089.36x = 130,412.46 × 57,417.17
  4. Step 4: Simplify right side
    87,089.36x = 7,487,914,385.94
  5. Step 5: Solve for x
    x = 7,487,914,385.94/87,089.36
  6. Step 6: Final answer
    x = 85,979.67

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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.