Home / 90,828.05-125,271.70-59,007.20

Finding the Fourth Proportional to 90,828.05, 125,271.70 and 59,007.20

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Solution

The fourth proportional to 90,828.05, 125,271.70 and 59,007.20 is: 81,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828.05 : 125,271.70 = 59,007.20 : x
  2. Step 2: Convert to fraction form
    90,828.05/125,271.70 = 59,007.20/x
  3. Step 3: Cross multiply
    90,828.05x = 125,271.70 × 59,007.20
  4. Step 4: Simplify right side
    90,828.05x = 7,391,931,482.36
  5. Step 5: Solve for x
    x = 7,391,931,482.36/90,828.05
  6. Step 6: Final answer
    x = 81,383.80

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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.