Home / 70,862.45-97,790.16-39,031.34

Finding the Fourth Proportional to 70,862.45, 97,790.16 and 39,031.34

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Solution

The fourth proportional to 70,862.45, 97,790.16 and 39,031.34 is: 53,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,862.45 : 97,790.16 = 39,031.34 : x
  2. Step 2: Convert to fraction form
    70,862.45/97,790.16 = 39,031.34/x
  3. Step 3: Cross multiply
    70,862.45x = 97,790.16 × 39,031.34
  4. Step 4: Simplify right side
    70,862.45x = 3,816,880,983.61
  5. Step 5: Solve for x
    x = 3,816,880,983.61/70,862.45
  6. Step 6: Final answer
    x = 53,863.24

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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.