Home / 91,947.40-138,050.70-56,955.40

Finding the Fourth Proportional to 91,947.40, 138,050.70 and 56,955.40

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Solution

The fourth proportional to 91,947.40, 138,050.70 and 56,955.40 is: 85,513.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,947.40 : 138,050.70 = 56,955.40 : x
  2. Step 2: Convert to fraction form
    91,947.40/138,050.70 = 56,955.40/x
  3. Step 3: Cross multiply
    91,947.40x = 138,050.70 × 56,955.40
  4. Step 4: Simplify right side
    91,947.40x = 7,862,732,838.78
  5. Step 5: Solve for x
    x = 7,862,732,838.78/91,947.40
  6. Step 6: Final answer
    x = 85,513.38

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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.