Home / 86,868.40-130,302.60-53,480.20

Finding the Fourth Proportional to 86,868.40, 130,302.60 and 53,480.20

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Solution

The fourth proportional to 86,868.40, 130,302.60 and 53,480.20 is: 80,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,868.40 : 130,302.60 = 53,480.20 : x
  2. Step 2: Convert to fraction form
    86,868.40/130,302.60 = 53,480.20/x
  3. Step 3: Cross multiply
    86,868.40x = 130,302.60 × 53,480.20
  4. Step 4: Simplify right side
    86,868.40x = 6,968,609,108.52
  5. Step 5: Solve for x
    x = 6,968,609,108.52/86,868.40
  6. Step 6: Final answer
    x = 80,220.30

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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.