Home / 77,330.25-106,713.93-45,501.21

Finding the Fourth Proportional to 77,330.25, 106,713.93 and 45,501.21

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Solution

The fourth proportional to 77,330.25, 106,713.93 and 45,501.21 is: 62,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,330.25 : 106,713.93 = 45,501.21 : x
  2. Step 2: Convert to fraction form
    77,330.25/106,713.93 = 45,501.21/x
  3. Step 3: Cross multiply
    77,330.25x = 106,713.93 × 45,501.21
  4. Step 4: Simplify right side
    77,330.25x = 4,855,612,938.86
  5. Step 5: Solve for x
    x = 4,855,612,938.86/77,330.25
  6. Step 6: Final answer
    x = 62,790.60

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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.