Home / 91,681.64-126,520.49-51,395.39

Finding the Fourth Proportional to 91,681.64, 126,520.49 and 51,395.39

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Solution

The fourth proportional to 91,681.64, 126,520.49 and 51,395.39 is: 70,925.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,681.64 : 126,520.49 = 51,395.39 : x
  2. Step 2: Convert to fraction form
    91,681.64/126,520.49 = 51,395.39/x
  3. Step 3: Cross multiply
    91,681.64x = 126,520.49 × 51,395.39
  4. Step 4: Simplify right side
    91,681.64x = 6,502,569,036.96
  5. Step 5: Solve for x
    x = 6,502,569,036.96/91,681.64
  6. Step 6: Final answer
    x = 70,925.54

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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.