Home / 70,938.77-97,896.16-39,108.81

Finding the Fourth Proportional to 70,938.77, 97,896.16 and 39,108.81

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Solution

The fourth proportional to 70,938.77, 97,896.16 and 39,108.81 is: 53,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,938.77 : 97,896.16 = 39,108.81 : x
  2. Step 2: Convert to fraction form
    70,938.77/97,896.16 = 39,108.81/x
  3. Step 3: Cross multiply
    70,938.77x = 97,896.16 × 39,108.81
  4. Step 4: Simplify right side
    70,938.77x = 3,828,602,125.63
  5. Step 5: Solve for x
    x = 3,828,602,125.63/70,938.77
  6. Step 6: Final answer
    x = 53,970.52

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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.