Home / 90,030.06-124,211.61-54,206.46

Finding the Fourth Proportional to 90,030.06, 124,211.61 and 54,206.46

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Solution

The fourth proportional to 90,030.06, 124,211.61 and 54,206.46 is: 74,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,030.06 : 124,211.61 = 54,206.46 : x
  2. Step 2: Convert to fraction form
    90,030.06/124,211.61 = 54,206.46/x
  3. Step 3: Cross multiply
    90,030.06x = 124,211.61 × 54,206.46
  4. Step 4: Simplify right side
    90,030.06x = 6,733,071,669.00
  5. Step 5: Solve for x
    x = 6,733,071,669.00/90,030.06
  6. Step 6: Final answer
    x = 74,786.93

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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.