Home / 70,417.64-97,176.33-42,129.98

Finding the Fourth Proportional to 70,417.64, 97,176.33 and 42,129.98

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Solution

The fourth proportional to 70,417.64, 97,176.33 and 42,129.98 is: 58,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,417.64 : 97,176.33 = 42,129.98 : x
  2. Step 2: Convert to fraction form
    70,417.64/97,176.33 = 42,129.98/x
  3. Step 3: Cross multiply
    70,417.64x = 97,176.33 × 42,129.98
  4. Step 4: Simplify right side
    70,417.64x = 4,094,036,839.37
  5. Step 5: Solve for x
    x = 4,094,036,839.37/70,417.64
  6. Step 6: Final answer
    x = 58,139.36

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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.