Home / 75,931.71-113,889.36-42,547.16

Finding the Fourth Proportional to 75,931.71, 113,889.36 and 42,547.16

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Solution

The fourth proportional to 75,931.71, 113,889.36 and 42,547.16 is: 63,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,931.71 : 113,889.36 = 42,547.16 : x
  2. Step 2: Convert to fraction form
    75,931.71/113,889.36 = 42,547.16/x
  3. Step 3: Cross multiply
    75,931.71x = 113,889.36 × 42,547.16
  4. Step 4: Simplify right side
    75,931.71x = 4,845,668,252.77
  5. Step 5: Solve for x
    x = 4,845,668,252.77/75,931.71
  6. Step 6: Final answer
    x = 63,816.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.