Home / 90,140.04-124,402.59-51,900.93

Finding the Fourth Proportional to 90,140.04, 124,402.59 and 51,900.93

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Solution

The fourth proportional to 90,140.04, 124,402.59 and 51,900.93 is: 71,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,140.04 : 124,402.59 = 51,900.93 : x
  2. Step 2: Convert to fraction form
    90,140.04/124,402.59 = 51,900.93/x
  3. Step 3: Cross multiply
    90,140.04x = 124,402.59 × 51,900.93
  4. Step 4: Simplify right side
    90,140.04x = 6,456,610,115.41
  5. Step 5: Solve for x
    x = 6,456,610,115.41/90,140.04
  6. Step 6: Final answer
    x = 71,628.66

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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.