Home / 85,210.65-117,599.45-51,230.21

Finding the Fourth Proportional to 85,210.65, 117,599.45 and 51,230.21

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Solution

The fourth proportional to 85,210.65, 117,599.45 and 51,230.21 is: 70,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,210.65 : 117,599.45 = 51,230.21 : x
  2. Step 2: Convert to fraction form
    85,210.65/117,599.45 = 51,230.21/x
  3. Step 3: Cross multiply
    85,210.65x = 117,599.45 × 51,230.21
  4. Step 4: Simplify right side
    85,210.65x = 6,024,643,675.24
  5. Step 5: Solve for x
    x = 6,024,643,675.24/85,210.65
  6. Step 6: Final answer
    x = 70,702.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.