Home / 71,973.90-99,341.78-49,041.63

Finding the Fourth Proportional to 71,973.90, 99,341.78 and 49,041.63

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Solution

The fourth proportional to 71,973.90, 99,341.78 and 49,041.63 is: 67,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.90 : 99,341.78 = 49,041.63 : x
  2. Step 2: Convert to fraction form
    71,973.90/99,341.78 = 49,041.63/x
  3. Step 3: Cross multiply
    71,973.90x = 99,341.78 × 49,041.63
  4. Step 4: Simplify right side
    71,973.90x = 4,871,882,818.30
  5. Step 5: Solve for x
    x = 4,871,882,818.30/71,973.90
  6. Step 6: Final answer
    x = 67,689.58

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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.