Home / 98,871.21-136,466.67-56,454.33

Finding the Fourth Proportional to 98,871.21, 136,466.67 and 56,454.33

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Solution

The fourth proportional to 98,871.21, 136,466.67 and 56,454.33 is: 77,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,871.21 : 136,466.67 = 56,454.33 : x
  2. Step 2: Convert to fraction form
    98,871.21/136,466.67 = 56,454.33/x
  3. Step 3: Cross multiply
    98,871.21x = 136,466.67 × 56,454.33
  4. Step 4: Simplify right side
    98,871.21x = 7,704,134,422.18
  5. Step 5: Solve for x
    x = 7,704,134,422.18/98,871.21
  6. Step 6: Final answer
    x = 77,920.91

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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.