Home / 85,247.10-127,907.10-53,681.40

Finding the Fourth Proportional to 85,247.10, 127,907.10 and 53,681.40

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Solution

The fourth proportional to 85,247.10, 127,907.10 and 53,681.40 is: 80,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,247.10 : 127,907.10 = 53,681.40 : x
  2. Step 2: Convert to fraction form
    85,247.10/127,907.10 = 53,681.40/x
  3. Step 3: Cross multiply
    85,247.10x = 127,907.10 × 53,681.40
  4. Step 4: Simplify right side
    85,247.10x = 6,866,232,197.94
  5. Step 5: Solve for x
    x = 6,866,232,197.94/85,247.10
  6. Step 6: Final answer
    x = 80,545.05

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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.