Home / 90,271.68-124,588.98-51,509.58

Finding the Fourth Proportional to 90,271.68, 124,588.98 and 51,509.58

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Solution

The fourth proportional to 90,271.68, 124,588.98 and 51,509.58 is: 71,091.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,271.68 : 124,588.98 = 51,509.58 : x
  2. Step 2: Convert to fraction form
    90,271.68/124,588.98 = 51,509.58/x
  3. Step 3: Cross multiply
    90,271.68x = 124,588.98 × 51,509.58
  4. Step 4: Simplify right side
    90,271.68x = 6,417,526,032.43
  5. Step 5: Solve for x
    x = 6,417,526,032.43/90,271.68
  6. Step 6: Final answer
    x = 71,091.24

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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.