Home / 42,308.16-63,345.44-31,888.32

Finding the Fourth Proportional to 42,308.16, 63,345.44 and 31,888.32

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Solution

The fourth proportional to 42,308.16, 63,345.44 and 31,888.32 is: 47,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,308.16 : 63,345.44 = 31,888.32 : x
  2. Step 2: Convert to fraction form
    42,308.16/63,345.44 = 31,888.32/x
  3. Step 3: Cross multiply
    42,308.16x = 63,345.44 × 31,888.32
  4. Step 4: Simplify right side
    42,308.16x = 2,019,979,661.26
  5. Step 5: Solve for x
    x = 2,019,979,661.26/42,308.16
  6. Step 6: Final answer
    x = 47,744.45

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1.5x scale

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.