Home / 87,209.48-130,895.93-42,868.06

Finding the Fourth Proportional to 87,209.48, 130,895.93 and 42,868.06

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Solution

The fourth proportional to 87,209.48, 130,895.93 and 42,868.06 is: 64,342.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,209.48 : 130,895.93 = 42,868.06 : x
  2. Step 2: Convert to fraction form
    87,209.48/130,895.93 = 42,868.06/x
  3. Step 3: Cross multiply
    87,209.48x = 130,895.93 × 42,868.06
  4. Step 4: Simplify right side
    87,209.48x = 5,611,254,360.93
  5. Step 5: Solve for x
    x = 5,611,254,360.93/87,209.48
  6. Step 6: Final answer
    x = 64,342.25

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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.