Home / 82,985.04-124,476.44-20,656.08

Finding the Fourth Proportional to 82,985.04, 124,476.44 and 20,656.08

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Solution

The fourth proportional to 82,985.04, 124,476.44 and 20,656.08 is: 30,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,985.04 : 124,476.44 = 20,656.08 : x
  2. Step 2: Convert to fraction form
    82,985.04/124,476.44 = 20,656.08/x
  3. Step 3: Cross multiply
    82,985.04x = 124,476.44 × 20,656.08
  4. Step 4: Simplify right side
    82,985.04x = 2,571,195,302.76
  5. Step 5: Solve for x
    x = 2,571,195,302.76/82,985.04
  6. Step 6: Final answer
    x = 30,983.84

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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.