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Finding the Fourth Proportional to 70,407.83, 97,159.07 and 40,191.95

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Solution

The fourth proportional to 70,407.83, 97,159.07 and 40,191.95 is: 55,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407.83 : 97,159.07 = 40,191.95 : x
  2. Step 2: Convert to fraction form
    70,407.83/97,159.07 = 40,191.95/x
  3. Step 3: Cross multiply
    70,407.83x = 97,159.07 × 40,191.95
  4. Step 4: Simplify right side
    70,407.83x = 3,905,012,098.17
  5. Step 5: Solve for x
    x = 3,905,012,098.17/70,407.83
  6. Step 6: Final answer
    x = 55,462.76

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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.