Home / 85,089.04-127,630.40-34,486.32

Finding the Fourth Proportional to 85,089.04, 127,630.40 and 34,486.32

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Solution

The fourth proportional to 85,089.04, 127,630.40 and 34,486.32 is: 51,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,089.04 : 127,630.40 = 34,486.32 : x
  2. Step 2: Convert to fraction form
    85,089.04/127,630.40 = 34,486.32/x
  3. Step 3: Cross multiply
    85,089.04x = 127,630.40 × 34,486.32
  4. Step 4: Simplify right side
    85,089.04x = 4,401,502,816.13
  5. Step 5: Solve for x
    x = 4,401,502,816.13/85,089.04
  6. Step 6: Final answer
    x = 51,728.20

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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.