Home / 70,947.51-97,905.69-39,115.59

Finding the Fourth Proportional to 70,947.51, 97,905.69 and 39,115.59

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Solution

The fourth proportional to 70,947.51, 97,905.69 and 39,115.59 is: 53,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.51 : 97,905.69 = 39,115.59 : x
  2. Step 2: Convert to fraction form
    70,947.51/97,905.69 = 39,115.59/x
  3. Step 3: Cross multiply
    70,947.51x = 97,905.69 × 39,115.59
  4. Step 4: Simplify right side
    70,947.51x = 3,829,638,828.71
  5. Step 5: Solve for x
    x = 3,829,638,828.71/70,947.51
  6. Step 6: Final answer
    x = 53,978.48

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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.