Home / 86,985.94-130,510-53,667.22

Finding the Fourth Proportional to 86,985.94, 130,510 and 53,667.22

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Solution

The fourth proportional to 86,985.94, 130,510 and 53,667.22 is: 80,520.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985.94 : 130,510 = 53,667.22 : x
  2. Step 2: Convert to fraction form
    86,985.94/130,510 = 53,667.22/x
  3. Step 3: Cross multiply
    86,985.94x = 130,510 × 53,667.22
  4. Step 4: Simplify right side
    86,985.94x = 7,004,108,882.20
  5. Step 5: Solve for x
    x = 7,004,108,882.20/86,985.94
  6. Step 6: Final answer
    x = 80,520.01

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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.