Home / 75,159.04-103,693.74-42,870.46

Finding the Fourth Proportional to 75,159.04, 103,693.74 and 42,870.46

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Solution

The fourth proportional to 75,159.04, 103,693.74 and 42,870.46 is: 59,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,159.04 : 103,693.74 = 42,870.46 : x
  2. Step 2: Convert to fraction form
    75,159.04/103,693.74 = 42,870.46/x
  3. Step 3: Cross multiply
    75,159.04x = 103,693.74 × 42,870.46
  4. Step 4: Simplify right side
    75,159.04x = 4,445,398,332.92
  5. Step 5: Solve for x
    x = 4,445,398,332.92/75,159.04
  6. Step 6: Final answer
    x = 59,146.56

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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.