Home / 76,916.08-106,149.54-42,931.22

Finding the Fourth Proportional to 76,916.08, 106,149.54 and 42,931.22

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Solution

The fourth proportional to 76,916.08, 106,149.54 and 42,931.22 is: 59,248.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,916.08 : 106,149.54 = 42,931.22 : x
  2. Step 2: Convert to fraction form
    76,916.08/106,149.54 = 42,931.22/x
  3. Step 3: Cross multiply
    76,916.08x = 106,149.54 × 42,931.22
  4. Step 4: Simplify right side
    76,916.08x = 4,557,128,643.40
  5. Step 5: Solve for x
    x = 4,557,128,643.40/76,916.08
  6. Step 6: Final answer
    x = 59,248.06

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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.