Home / 91,038.92-136,378.15-42,941.66

Finding the Fourth Proportional to 91,038.92, 136,378.15 and 42,941.66

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Solution

The fourth proportional to 91,038.92, 136,378.15 and 42,941.66 is: 64,327.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,038.92 : 136,378.15 = 42,941.66 : x
  2. Step 2: Convert to fraction form
    91,038.92/136,378.15 = 42,941.66/x
  3. Step 3: Cross multiply
    91,038.92x = 136,378.15 × 42,941.66
  4. Step 4: Simplify right side
    91,038.92x = 5,856,303,359.48
  5. Step 5: Solve for x
    x = 5,856,303,359.48/91,038.92
  6. Step 6: Final answer
    x = 64,327.47

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1.5x scale

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.