Home / 85,216.16-117,607.08-51,235.76

Finding the Fourth Proportional to 85,216.16, 117,607.08 and 51,235.76

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Solution

The fourth proportional to 85,216.16, 117,607.08 and 51,235.76 is: 70,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,216.16 : 117,607.08 = 51,235.76 : x
  2. Step 2: Convert to fraction form
    85,216.16/117,607.08 = 51,235.76/x
  3. Step 3: Cross multiply
    85,216.16x = 117,607.08 × 51,235.76
  4. Step 4: Simplify right side
    85,216.16x = 6,025,688,125.18
  5. Step 5: Solve for x
    x = 6,025,688,125.18/85,216.16
  6. Step 6: Final answer
    x = 70,710.63

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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.