Home / 85,130.04-127,543.20-51,832.92

Finding the Fourth Proportional to 85,130.04, 127,543.20 and 51,832.92

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Solution

The fourth proportional to 85,130.04, 127,543.20 and 51,832.92 is: 77,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130.04 : 127,543.20 = 51,832.92 : x
  2. Step 2: Convert to fraction form
    85,130.04/127,543.20 = 51,832.92/x
  3. Step 3: Cross multiply
    85,130.04x = 127,543.20 × 51,832.92
  4. Step 4: Simplify right side
    85,130.04x = 6,610,936,482.14
  5. Step 5: Solve for x
    x = 6,610,936,482.14/85,130.04
  6. Step 6: Final answer
    x = 77,656.92

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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.