Home / 61,931.96-85,501.51-40,772.73

Finding the Fourth Proportional to 61,931.96, 85,501.51 and 40,772.73

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Solution

The fourth proportional to 61,931.96, 85,501.51 and 40,772.73 is: 56,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931.96 : 85,501.51 = 40,772.73 : x
  2. Step 2: Convert to fraction form
    61,931.96/85,501.51 = 40,772.73/x
  3. Step 3: Cross multiply
    61,931.96x = 85,501.51 × 40,772.73
  4. Step 4: Simplify right side
    61,931.96x = 3,486,129,981.82
  5. Step 5: Solve for x
    x = 3,486,129,981.82/61,931.96
  6. Step 6: Final answer
    x = 56,289.68

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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.