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Finding the Fourth Proportional to 70,557.83, 97,352.60 and 39,931.63

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Solution

The fourth proportional to 70,557.83, 97,352.60 and 39,931.63 is: 55,095.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,557.83 : 97,352.60 = 39,931.63 : x
  2. Step 2: Convert to fraction form
    70,557.83/97,352.60 = 39,931.63/x
  3. Step 3: Cross multiply
    70,557.83x = 97,352.60 × 39,931.63
  4. Step 4: Simplify right side
    70,557.83x = 3,887,447,559.70
  5. Step 5: Solve for x
    x = 3,887,447,559.70/70,557.83
  6. Step 6: Final answer
    x = 55,095.91

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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.