Home / 57,056.07-78,731.33-31,558.40

Finding the Fourth Proportional to 57,056.07, 78,731.33 and 31,558.40

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Solution

The fourth proportional to 57,056.07, 78,731.33 and 31,558.40 is: 43,547.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.07 : 78,731.33 = 31,558.40 : x
  2. Step 2: Convert to fraction form
    57,056.07/78,731.33 = 31,558.40/x
  3. Step 3: Cross multiply
    57,056.07x = 78,731.33 × 31,558.40
  4. Step 4: Simplify right side
    57,056.07x = 2,484,634,253.22
  5. Step 5: Solve for x
    x = 2,484,634,253.22/57,056.07
  6. Step 6: Final answer
    x = 43,547.24

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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.