Home / 78,875.04-118,312.56-46,020

Finding the Fourth Proportional to 78,875.04, 118,312.56 and 46,020

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Solution

The fourth proportional to 78,875.04, 118,312.56 and 46,020 is: 69,030

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,875.04 : 118,312.56 = 46,020 : x
  2. Step 2: Convert to fraction form
    78,875.04/118,312.56 = 46,020/x
  3. Step 3: Cross multiply
    78,875.04x = 118,312.56 × 46,020
  4. Step 4: Simplify right side
    78,875.04x = 5,444,744,011.20
  5. Step 5: Solve for x
    x = 5,444,744,011.20/78,875.04
  6. Step 6: Final answer
    x = 69,030

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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.