Home / 115,347.71-172,915.85-40,427.01

Finding the Fourth Proportional to 115,347.71, 172,915.85 and 40,427.01

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Solution

The fourth proportional to 115,347.71, 172,915.85 and 40,427.01 is: 60,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,347.71 : 172,915.85 = 40,427.01 : x
  2. Step 2: Convert to fraction form
    115,347.71/172,915.85 = 40,427.01/x
  3. Step 3: Cross multiply
    115,347.71x = 172,915.85 × 40,427.01
  4. Step 4: Simplify right side
    115,347.71x = 6,990,470,797.11
  5. Step 5: Solve for x
    x = 6,990,470,797.11/115,347.71
  6. Step 6: Final answer
    x = 60,603.47

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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.