Home / 70,947.64-97,916.60-40,742.40

Finding the Fourth Proportional to 70,947.64, 97,916.60 and 40,742.40

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Solution

The fourth proportional to 70,947.64, 97,916.60 and 40,742.40 is: 56,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.64 : 97,916.60 = 40,742.40 : x
  2. Step 2: Convert to fraction form
    70,947.64/97,916.60 = 40,742.40/x
  3. Step 3: Cross multiply
    70,947.64x = 97,916.60 × 40,742.40
  4. Step 4: Simplify right side
    70,947.64x = 3,989,357,283.84
  5. Step 5: Solve for x
    x = 3,989,357,283.84/70,947.64
  6. Step 6: Final answer
    x = 56,229.60

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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.