Home / 71,012.51-98,003.13-40,803.67

Finding the Fourth Proportional to 71,012.51, 98,003.13 and 40,803.67

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Solution

The fourth proportional to 71,012.51, 98,003.13 and 40,803.67 is: 56,312.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,012.51 : 98,003.13 = 40,803.67 : x
  2. Step 2: Convert to fraction form
    71,012.51/98,003.13 = 40,803.67/x
  3. Step 3: Cross multiply
    71,012.51x = 98,003.13 × 40,803.67
  4. Step 4: Simplify right side
    71,012.51x = 3,998,886,681.45
  5. Step 5: Solve for x
    x = 3,998,886,681.45/71,012.51
  6. Step 6: Final answer
    x = 56,312.43

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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.