Home / 91,973.86-137,931.63-39,369.22

Finding the Fourth Proportional to 91,973.86, 137,931.63 and 39,369.22

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Solution

The fourth proportional to 91,973.86, 137,931.63 and 39,369.22 is: 59,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,973.86 : 137,931.63 = 39,369.22 : x
  2. Step 2: Convert to fraction form
    91,973.86/137,931.63 = 39,369.22/x
  3. Step 3: Cross multiply
    91,973.86x = 137,931.63 × 39,369.22
  4. Step 4: Simplify right side
    91,973.86x = 5,430,260,686.43
  5. Step 5: Solve for x
    x = 5,430,260,686.43/91,973.86
  6. Step 6: Final answer
    x = 59,041.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.