Home / 78,557.50-117,854.70-25,966.98

Finding the Fourth Proportional to 78,557.50, 117,854.70 and 25,966.98

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Solution

The fourth proportional to 78,557.50, 117,854.70 and 25,966.98 is: 38,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,557.50 : 117,854.70 = 25,966.98 : x
  2. Step 2: Convert to fraction form
    78,557.50/117,854.70 = 25,966.98/x
  3. Step 3: Cross multiply
    78,557.50x = 117,854.70 × 25,966.98
  4. Step 4: Simplify right side
    78,557.50x = 3,060,330,637.81
  5. Step 5: Solve for x
    x = 3,060,330,637.81/78,557.50
  6. Step 6: Final answer
    x = 38,956.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.