Home / 91,950.09-126,962.01-74,124.69

Finding the Fourth Proportional to 91,950.09, 126,962.01 and 74,124.69

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Solution

The fourth proportional to 91,950.09, 126,962.01 and 74,124.69 is: 102,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,950.09 : 126,962.01 = 74,124.69 : x
  2. Step 2: Convert to fraction form
    91,950.09/126,962.01 = 74,124.69/x
  3. Step 3: Cross multiply
    91,950.09x = 126,962.01 × 74,124.69
  4. Step 4: Simplify right side
    91,950.09x = 9,411,019,633.03
  5. Step 5: Solve for x
    x = 9,411,019,633.03/91,950.09
  6. Step 6: Final answer
    x = 102,349.22

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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.