Home / 62,420.63-86,178.60-40,637.57

Finding the Fourth Proportional to 62,420.63, 86,178.60 and 40,637.57

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Solution

The fourth proportional to 62,420.63, 86,178.60 and 40,637.57 is: 56,104.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,420.63 : 86,178.60 = 40,637.57 : x
  2. Step 2: Convert to fraction form
    62,420.63/86,178.60 = 40,637.57/x
  3. Step 3: Cross multiply
    62,420.63x = 86,178.60 × 40,637.57
  4. Step 4: Simplify right side
    62,420.63x = 3,502,088,459.11
  5. Step 5: Solve for x
    x = 3,502,088,459.11/62,420.63
  6. Step 6: Final answer
    x = 56,104.67

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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.