Home / 91,869.13-126,782.95-51,036.35

Finding the Fourth Proportional to 91,869.13, 126,782.95 and 51,036.35

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Solution

The fourth proportional to 91,869.13, 126,782.95 and 51,036.35 is: 70,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,869.13 : 126,782.95 = 51,036.35 : x
  2. Step 2: Convert to fraction form
    91,869.13/126,782.95 = 51,036.35/x
  3. Step 3: Cross multiply
    91,869.13x = 126,782.95 × 51,036.35
  4. Step 4: Simplify right side
    91,869.13x = 6,470,538,121.14
  5. Step 5: Solve for x
    x = 6,470,538,121.14/91,869.13
  6. Step 6: Final answer
    x = 70,432.13

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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.