Home / 56,452.19-77,905.10-30,957.04

Finding the Fourth Proportional to 56,452.19, 77,905.10 and 30,957.04

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Solution

The fourth proportional to 56,452.19, 77,905.10 and 30,957.04 is: 42,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,452.19 : 77,905.10 = 30,957.04 : x
  2. Step 2: Convert to fraction form
    56,452.19/77,905.10 = 30,957.04/x
  3. Step 3: Cross multiply
    56,452.19x = 77,905.10 × 30,957.04
  4. Step 4: Simplify right side
    56,452.19x = 2,411,710,947.36
  5. Step 5: Solve for x
    x = 2,411,710,947.36/56,452.19
  6. Step 6: Final answer
    x = 42,721.30

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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.